331379720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{79}}^1\times {\mathrm{211}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 879206400

約数和(自身を除く): 547826680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 71, 79, 140, 142, 158, 211, 280, 284, 316, 355, 395, 422, 497, 553, 568, 632, 710, 790, 844, 994, 1055, 1106, 1420, 1477, 1580, 1688, 1988, 2110, 2212, 2485, 2765, 2840, 2954, 3160, 3976, 4220, 4424, 4970, 5530, 5609, 5908, 7385, 8440, 9940, 11060, 11218, 11816, 14770, 14981, 16669, 19880, 22120, 22436, 28045, 29540, 29962, 33338, 39263, 44872, 56090, 59080, 59924, 66676, 74905, 78526, 83345, 104867, 112180, 116683, 119848, 133352, 149810, 157052, 166690, 196315, 209734, 224360, 233366, 299620, 314104, 333380, 392630, 419468, 466732, 524335, 583415, 599240, 666760, 785260, 838936, 933464, 1048670, 1166830, 1183499, 1570520, 2097340, 2333660, 2366998, 4194680, 4667320, 4733996, 5917495, 8284493, 9467992, 11834990, 16568986, 23669980, 33137972, 41422465, 47339960, 66275944, 82844930, 165689860, 331379720]

約数ペア:

[(1, 331379720), (2, 165689860), (4, 82844930), (5, 66275944), (7, 47339960), (8, 41422465), (10, 33137972), (14, 23669980), (20, 16568986), (28, 11834990), (35, 9467992), (40, 8284493), (56, 5917495), (70, 4733996), (71, 4667320), (79, 4194680), (140, 2366998), (142, 2333660), (158, 2097340), (211, 1570520), (280, 1183499), (284, 1166830), (316, 1048670), (355, 933464), (395, 838936), (422, 785260), (497, 666760), (553, 599240), (568, 583415), (632, 524335), (710, 466732), (790, 419468), (844, 392630), (994, 333380), (1055, 314104), (1106, 299620), (1420, 233366), (1477, 224360), (1580, 209734), (1688, 196315), (1988, 166690), (2110, 157052), (2212, 149810), (2485, 133352), (2765, 119848), (2840, 116683), (2954, 112180), (3160, 104867), (3976, 83345), (4220, 78526), (4424, 74905), (4970, 66676), (5530, 59924), (5609, 59080), (5908, 56090), (7385, 44872), (8440, 39263), (9940, 33338), (11060, 29962), (11218, 29540), (11816, 28045), (14770, 22436), (14981, 22120), (16669, 19880)]