19992960

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1$

素因数の和:130

約数の個数: 256

約数和(自身を含む): 77112000

約数和(自身を除く): 57119040

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 89, 90, 96, 104, 108, 117, 120, 128, 130, 135, 144, 156, 160, 178, 180, 192, 195, 208, 216, 234, 240, 260, 267, 270, 288, 312, 320, 351, 356, 360, 384, 390, 416, 432, 445, 468, 480, 520, 534, 540, 576, 585, 624, 640, 702, 712, 720, 780, 801, 832, 864, 890, 936, 960, 1040, 1068, 1080, 1152, 1157, 1170, 1248, 1335, 1404, 1424, 1440, 1560, 1602, 1664, 1728, 1755, 1780, 1872, 1920, 2080, 2136, 2160, 2314, 2340, 2403, 2496, 2670, 2808, 2848, 2880, 3120, 3204, 3456, 3471, 3510, 3560, 3744, 4005, 4160, 4272, 4320, 4628, 4680, 4806, 4992, 5340, 5616, 5696, 5760, 5785, 6240, 6408, 6942, 7020, 7120, 7488, 8010, 8320, 8544, 8640, 9256, 9360, 9612, 10413, 10680, 11232, 11392, 11570, 12015, 12480, 12816, 13884, 14040, 14240, 14976, 16020, 17088, 17280, 17355, 18512, 18720, 19224, 20826, 21360, 22464, 23140, 24030, 24960, 25632, 27768, 28080, 28480, 31239, 32040, 34176, 34710, 37024, 37440, 38448, 41652, 42720, 44928, 46280, 48060, 51264, 52065, 55536, 56160, 56960, 62478, 64080, 69420, 74048, 74880, 76896, 83304, 85440, 92560, 96120, 102528, 104130, 111072, 112320, 124956, 128160, 138840, 148096, 153792, 156195, 166608, 170880, 185120, 192240, 208260, 222144, 224640, 249912, 256320, 277680, 307584, 312390, 333216, 370240, 384480, 416520, 444288, 499824, 512640, 555360, 624780, 666432, 740480, 768960, 833040, 999648, 1110720, 1249560, 1332864, 1537920, 1666080, 1999296, 2221440, 2499120, 3332160, 3998592, 4998240, 6664320, 9996480, 19992960]

約数ペア:

[(1, 19992960), (2, 9996480), (3, 6664320), (4, 4998240), (5, 3998592), (6, 3332160), (8, 2499120), (9, 2221440), (10, 1999296), (12, 1666080), (13, 1537920), (15, 1332864), (16, 1249560), (18, 1110720), (20, 999648), (24, 833040), (26, 768960), (27, 740480), (30, 666432), (32, 624780), (36, 555360), (39, 512640), (40, 499824), (45, 444288), (48, 416520), (52, 384480), (54, 370240), (60, 333216), (64, 312390), (65, 307584), (72, 277680), (78, 256320), (80, 249912), (89, 224640), (90, 222144), (96, 208260), (104, 192240), (108, 185120), (117, 170880), (120, 166608), (128, 156195), (130, 153792), (135, 148096), (144, 138840), (156, 128160), (160, 124956), (178, 112320), (180, 111072), (192, 104130), (195, 102528), (208, 96120), (216, 92560), (234, 85440), (240, 83304), (260, 76896), (267, 74880), (270, 74048), (288, 69420), (312, 64080), (320, 62478), (351, 56960), (356, 56160), (360, 55536), (384, 52065), (390, 51264), (416, 48060), (432, 46280), (445, 44928), (468, 42720), (480, 41652), (520, 38448), (534, 37440), (540, 37024), (576, 34710), (585, 34176), (624, 32040), (640, 31239), (702, 28480), (712, 28080), (720, 27768), (780, 25632), (801, 24960), (832, 24030), (864, 23140), (890, 22464), (936, 21360), (960, 20826), (1040, 19224), (1068, 18720), (1080, 18512), (1152, 17355), (1157, 17280), (1170, 17088), (1248, 16020), (1335, 14976), (1404, 14240), (1424, 14040), (1440, 13884), (1560, 12816), (1602, 12480), (1664, 12015), (1728, 11570), (1755, 11392), (1780, 11232), (1872, 10680), (1920, 10413), (2080, 9612), (2136, 9360), (2160, 9256), (2314, 8640), (2340, 8544), (2403, 8320), (2496, 8010), (2670, 7488), (2808, 7120), (2848, 7020), (2880, 6942), (3120, 6408), (3204, 6240), (3456, 5785), (3471, 5760), (3510, 5696), (3560, 5616), (3744, 5340), (4005, 4992), (4160, 4806), (4272, 4680), (4320, 4628)]