78001920

素因数分解:

$2^8\times 3^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:128

約数の個数: 288

約数和(自身を含む): 288939840

約数和(自身を除く): 210937920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 37, 40, 45, 48, 54, 60, 61, 64, 72, 74, 80, 90, 96, 108, 111, 120, 122, 128, 135, 144, 148, 160, 180, 183, 185, 192, 216, 222, 240, 244, 256, 270, 288, 296, 305, 320, 333, 360, 366, 370, 384, 432, 444, 480, 488, 540, 549, 555, 576, 592, 610, 640, 666, 720, 732, 740, 768, 864, 888, 915, 960, 976, 999, 1080, 1098, 1110, 1152, 1184, 1220, 1280, 1332, 1440, 1464, 1480, 1647, 1665, 1728, 1776, 1830, 1920, 1952, 1998, 2160, 2196, 2220, 2257, 2304, 2368, 2440, 2664, 2745, 2880, 2928, 2960, 3294, 3330, 3456, 3552, 3660, 3840, 3904, 3996, 4320, 4392, 4440, 4514, 4736, 4880, 4995, 5328, 5490, 5760, 5856, 5920, 6588, 6660, 6771, 6912, 7104, 7320, 7808, 7992, 8235, 8640, 8784, 8880, 9028, 9472, 9760, 9990, 10656, 10980, 11285, 11520, 11712, 11840, 13176, 13320, 13542, 14208, 14640, 15616, 15984, 16470, 17280, 17568, 17760, 18056, 19520, 19980, 20313, 21312, 21960, 22570, 23424, 23680, 26352, 26640, 27084, 28416, 29280, 31968, 32940, 33855, 34560, 35136, 35520, 36112, 39040, 39960, 40626, 42624, 43920, 45140, 46848, 47360, 52704, 53280, 54168, 58560, 60939, 63936, 65880, 67710, 70272, 71040, 72224, 78080, 79920, 81252, 85248, 87840, 90280, 101565, 105408, 106560, 108336, 117120, 121878, 127872, 131760, 135420, 140544, 142080, 144448, 159840, 162504, 175680, 180560, 203130, 210816, 213120, 216672, 234240, 243756, 255744, 263520, 270840, 288896, 304695, 319680, 325008, 351360, 361120, 406260, 421632, 426240, 433344, 487512, 527040, 541680, 577792, 609390, 639360, 650016, 702720, 722240, 812520, 866688, 975024, 1054080, 1083360, 1218780, 1278720, 1300032, 1444480, 1625040, 1733376, 1950048, 2108160, 2166720, 2437560, 2600064, 2888960, 3250080, 3900096, 4333440, 4875120, 5200128, 6500160, 7800192, 8666880, 9750240, 13000320, 15600384, 19500480, 26000640, 39000960, 78001920]

約数ペア:

[(1, 78001920), (2, 39000960), (3, 26000640), (4, 19500480), (5, 15600384), (6, 13000320), (8, 9750240), (9, 8666880), (10, 7800192), (12, 6500160), (15, 5200128), (16, 4875120), (18, 4333440), (20, 3900096), (24, 3250080), (27, 2888960), (30, 2600064), (32, 2437560), (36, 2166720), (37, 2108160), (40, 1950048), (45, 1733376), (48, 1625040), (54, 1444480), (60, 1300032), (61, 1278720), (64, 1218780), (72, 1083360), (74, 1054080), (80, 975024), (90, 866688), (96, 812520), (108, 722240), (111, 702720), (120, 650016), (122, 639360), (128, 609390), (135, 577792), (144, 541680), (148, 527040), (160, 487512), (180, 433344), (183, 426240), (185, 421632), (192, 406260), (216, 361120), (222, 351360), (240, 325008), (244, 319680), (256, 304695), (270, 288896), (288, 270840), (296, 263520), (305, 255744), (320, 243756), (333, 234240), (360, 216672), (366, 213120), (370, 210816), (384, 203130), (432, 180560), (444, 175680), (480, 162504), (488, 159840), (540, 144448), (549, 142080), (555, 140544), (576, 135420), (592, 131760), (610, 127872), (640, 121878), (666, 117120), (720, 108336), (732, 106560), (740, 105408), (768, 101565), (864, 90280), (888, 87840), (915, 85248), (960, 81252), (976, 79920), (999, 78080), (1080, 72224), (1098, 71040), (1110, 70272), (1152, 67710), (1184, 65880), (1220, 63936), (1280, 60939), (1332, 58560), (1440, 54168), (1464, 53280), (1480, 52704), (1647, 47360), (1665, 46848), (1728, 45140), (1776, 43920), (1830, 42624), (1920, 40626), (1952, 39960), (1998, 39040), (2160, 36112), (2196, 35520), (2220, 35136), (2257, 34560), (2304, 33855), (2368, 32940), (2440, 31968), (2664, 29280), (2745, 28416), (2880, 27084), (2928, 26640), (2960, 26352), (3294, 23680), (3330, 23424), (3456, 22570), (3552, 21960), (3660, 21312), (3840, 20313), (3904, 19980), (3996, 19520), (4320, 18056), (4392, 17760), (4440, 17568), (4514, 17280), (4736, 16470), (4880, 15984), (4995, 15616), (5328, 14640), (5490, 14208), (5760, 13542), (5856, 13320), (5920, 13176), (6588, 11840), (6660, 11712), (6771, 11520), (6912, 11285), (7104, 10980), (7320, 10656), (7808, 9990), (7992, 9760), (8235, 9472), (8640, 9028), (8784, 8880)]