31585280

素因数分解:

$2^{10}\times 5^1\times {\mathrm{31}}^1\times {\mathrm{199}}^1$

素因数の和:255

約数の個数: 88

約数和(自身を含む): 78604800

約数和(自身を除く): 47019520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 199, 248, 256, 310, 320, 398, 496, 512, 620, 640, 796, 992, 995, 1024, 1240, 1280, 1592, 1984, 1990, 2480, 2560, 3184, 3968, 3980, 4960, 5120, 6169, 6368, 7936, 7960, 9920, 12338, 12736, 15872, 15920, 19840, 24676, 25472, 30845, 31744, 31840, 39680, 49352, 50944, 61690, 63680, 79360, 98704, 101888, 123380, 127360, 158720, 197408, 203776, 246760, 254720, 394816, 493520, 509440, 789632, 987040, 1018880, 1579264, 1974080, 3158528, 3948160, 6317056, 7896320, 15792640, 31585280]

約数ペア:

[(1, 31585280), (2, 15792640), (4, 7896320), (5, 6317056), (8, 3948160), (10, 3158528), (16, 1974080), (20, 1579264), (31, 1018880), (32, 987040), (40, 789632), (62, 509440), (64, 493520), (80, 394816), (124, 254720), (128, 246760), (155, 203776), (160, 197408), (199, 158720), (248, 127360), (256, 123380), (310, 101888), (320, 98704), (398, 79360), (496, 63680), (512, 61690), (620, 50944), (640, 49352), (796, 39680), (992, 31840), (995, 31744), (1024, 30845), (1240, 25472), (1280, 24676), (1592, 19840), (1984, 15920), (1990, 15872), (2480, 12736), (2560, 12338), (3184, 9920), (3968, 7960), (3980, 7936), (4960, 6368), (5120, 6169)]