127739840

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:290

約数の個数: 112

約数和(自身を含む): 319918080

約数和(自身を除く): 192178240

約数列:

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

約数ペア:

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