255479680

素因数分解:

$2^7\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:292

約数の個数: 128

約数和(自身を含む): 642355200

約数和(自身を除く): 386875520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 79, 80, 124, 128, 155, 158, 160, 163, 248, 310, 316, 320, 326, 395, 496, 620, 632, 640, 652, 790, 815, 992, 1240, 1264, 1304, 1580, 1630, 1984, 2449, 2480, 2528, 2608, 3160, 3260, 3968, 4898, 4960, 5053, 5056, 5216, 6320, 6520, 9796, 9920, 10106, 10112, 10432, 12245, 12640, 12877, 13040, 19592, 19840, 20212, 20864, 24490, 25265, 25280, 25754, 26080, 39184, 40424, 48980, 50530, 50560, 51508, 52160, 64385, 78368, 80848, 97960, 101060, 103016, 104320, 128770, 156736, 161696, 195920, 202120, 206032, 257540, 313472, 323392, 391840, 399187, 404240, 412064, 515080, 646784, 783680, 798374, 808480, 824128, 1030160, 1567360, 1596748, 1616960, 1648256, 1995935, 2060320, 3193496, 3233920, 3991870, 4120640, 6386992, 7983740, 8241280, 12773984, 15967480, 25547968, 31934960, 51095936, 63869920, 127739840, 255479680]

約数ペア:

[(1, 255479680), (2, 127739840), (4, 63869920), (5, 51095936), (8, 31934960), (10, 25547968), (16, 15967480), (20, 12773984), (31, 8241280), (32, 7983740), (40, 6386992), (62, 4120640), (64, 3991870), (79, 3233920), (80, 3193496), (124, 2060320), (128, 1995935), (155, 1648256), (158, 1616960), (160, 1596748), (163, 1567360), (248, 1030160), (310, 824128), (316, 808480), (320, 798374), (326, 783680), (395, 646784), (496, 515080), (620, 412064), (632, 404240), (640, 399187), (652, 391840), (790, 323392), (815, 313472), (992, 257540), (1240, 206032), (1264, 202120), (1304, 195920), (1580, 161696), (1630, 156736), (1984, 128770), (2449, 104320), (2480, 103016), (2528, 101060), (2608, 97960), (3160, 80848), (3260, 78368), (3968, 64385), (4898, 52160), (4960, 51508), (5053, 50560), (5056, 50530), (5216, 48980), (6320, 40424), (6520, 39184), (9796, 26080), (9920, 25754), (10106, 25280), (10112, 25265), (10432, 24490), (12245, 20864), (12640, 20212), (12877, 19840), (13040, 19592)]