997594880

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^2\times {\mathrm{811}}^1$

素因数の和:894

約数の個数: 108

約数和(自身を含む): 2472164856

約数和(自身を除く): 1474569976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 811, 961, 992, 1240, 1280, 1622, 1922, 1984, 2480, 3244, 3844, 3968, 4055, 4805, 4960, 6488, 7688, 7936, 8110, 9610, 9920, 12976, 15376, 16220, 19220, 19840, 25141, 25952, 30752, 32440, 38440, 39680, 50282, 51904, 61504, 64880, 76880, 100564, 103808, 123008, 125705, 129760, 153760, 201128, 207616, 246016, 251410, 259520, 307520, 402256, 502820, 519040, 615040, 779371, 804512, 1005640, 1038080, 1230080, 1558742, 1609024, 2011280, 3117484, 3218048, 3896855, 4022560, 6234968, 6436096, 7793710, 8045120, 12469936, 15587420, 16090240, 24939872, 31174840, 32180480, 49879744, 62349680, 99759488, 124699360, 199518976, 249398720, 498797440, 997594880]

約数ペア:

[(1, 997594880), (2, 498797440), (4, 249398720), (5, 199518976), (8, 124699360), (10, 99759488), (16, 62349680), (20, 49879744), (31, 32180480), (32, 31174840), (40, 24939872), (62, 16090240), (64, 15587420), (80, 12469936), (124, 8045120), (128, 7793710), (155, 6436096), (160, 6234968), (248, 4022560), (256, 3896855), (310, 3218048), (320, 3117484), (496, 2011280), (620, 1609024), (640, 1558742), (811, 1230080), (961, 1038080), (992, 1005640), (1240, 804512), (1280, 779371), (1622, 615040), (1922, 519040), (1984, 502820), (2480, 402256), (3244, 307520), (3844, 259520), (3968, 251410), (4055, 246016), (4805, 207616), (4960, 201128), (6488, 153760), (7688, 129760), (7936, 125705), (8110, 123008), (9610, 103808), (9920, 100564), (12976, 76880), (15376, 64880), (16220, 61504), (19220, 51904), (19840, 50282), (25141, 39680), (25952, 38440), (30752, 32440)]