645140880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{397}}^1$

素因数の和:514

約数の個数: 240

約数和(自身を含む): 2267329584

約数和(自身を除く): 1622188704

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 37, 40, 45, 48, 60, 61, 72, 74, 80, 90, 111, 120, 122, 144, 148, 180, 183, 185, 222, 240, 244, 296, 305, 333, 360, 366, 370, 397, 444, 488, 549, 555, 592, 610, 666, 720, 732, 740, 794, 888, 915, 976, 1098, 1110, 1191, 1220, 1332, 1464, 1480, 1588, 1665, 1776, 1830, 1985, 2196, 2220, 2257, 2382, 2440, 2664, 2745, 2928, 2960, 3176, 3330, 3573, 3660, 3970, 4392, 4440, 4514, 4764, 4880, 5328, 5490, 5955, 6352, 6660, 6771, 7146, 7320, 7940, 8784, 8880, 9028, 9528, 10980, 11285, 11910, 13320, 13542, 14292, 14640, 14689, 15880, 17865, 18056, 19056, 20313, 21960, 22570, 23820, 24217, 26640, 27084, 28584, 29378, 31760, 33855, 35730, 36112, 40626, 43920, 44067, 45140, 47640, 48434, 54168, 57168, 58756, 67710, 71460, 72651, 73445, 81252, 88134, 90280, 95280, 96868, 101565, 108336, 117512, 121085, 132201, 135420, 142920, 145302, 146890, 162504, 176268, 180560, 193736, 203130, 217953, 220335, 235024, 242170, 264402, 270840, 285840, 290604, 293780, 325008, 352536, 363255, 387472, 406260, 435906, 440670, 484340, 528804, 541680, 581208, 587560, 661005, 705072, 726510, 812520, 871812, 881340, 896029, 968680, 1057608, 1089765, 1162416, 1175120, 1322010, 1453020, 1625040, 1743624, 1762680, 1792058, 1937360, 2115216, 2179530, 2644020, 2688087, 2906040, 3487248, 3525360, 3584116, 4359060, 4480145, 5288040, 5376174, 5812080, 7168232, 8064261, 8718120, 8960290, 10576080, 10752348, 13440435, 14336464, 16128522, 17436240, 17920580, 21504696, 26880870, 32257044, 35841160, 40321305, 43009392, 53761740, 64514088, 71682320, 80642610, 107523480, 129028176, 161285220, 215046960, 322570440, 645140880]

約数ペア:

[(1, 645140880), (2, 322570440), (3, 215046960), (4, 161285220), (5, 129028176), (6, 107523480), (8, 80642610), (9, 71682320), (10, 64514088), (12, 53761740), (15, 43009392), (16, 40321305), (18, 35841160), (20, 32257044), (24, 26880870), (30, 21504696), (36, 17920580), (37, 17436240), (40, 16128522), (45, 14336464), (48, 13440435), (60, 10752348), (61, 10576080), (72, 8960290), (74, 8718120), (80, 8064261), (90, 7168232), (111, 5812080), (120, 5376174), (122, 5288040), (144, 4480145), (148, 4359060), (180, 3584116), (183, 3525360), (185, 3487248), (222, 2906040), (240, 2688087), (244, 2644020), (296, 2179530), (305, 2115216), (333, 1937360), (360, 1792058), (366, 1762680), (370, 1743624), (397, 1625040), (444, 1453020), (488, 1322010), (549, 1175120), (555, 1162416), (592, 1089765), (610, 1057608), (666, 968680), (720, 896029), (732, 881340), (740, 871812), (794, 812520), (888, 726510), (915, 705072), (976, 661005), (1098, 587560), (1110, 581208), (1191, 541680), (1220, 528804), (1332, 484340), (1464, 440670), (1480, 435906), (1588, 406260), (1665, 387472), (1776, 363255), (1830, 352536), (1985, 325008), (2196, 293780), (2220, 290604), (2257, 285840), (2382, 270840), (2440, 264402), (2664, 242170), (2745, 235024), (2928, 220335), (2960, 217953), (3176, 203130), (3330, 193736), (3573, 180560), (3660, 176268), (3970, 162504), (4392, 146890), (4440, 145302), (4514, 142920), (4764, 135420), (4880, 132201), (5328, 121085), (5490, 117512), (5955, 108336), (6352, 101565), (6660, 96868), (6771, 95280), (7146, 90280), (7320, 88134), (7940, 81252), (8784, 73445), (8880, 72651), (9028, 71460), (9528, 67710), (10980, 58756), (11285, 57168), (11910, 54168), (13320, 48434), (13542, 47640), (14292, 45140), (14640, 44067), (14689, 43920), (15880, 40626), (17865, 36112), (18056, 35730), (19056, 33855), (20313, 31760), (21960, 29378), (22570, 28584), (23820, 27084), (24217, 26640)]