180512720

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:412

約数の個数: 80

約数和(自身を含む): 429496320

約数和(自身を除く): 248983600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 127, 163, 218, 254, 326, 436, 508, 545, 635, 652, 815, 872, 1016, 1090, 1270, 1304, 1630, 1744, 2032, 2180, 2540, 2608, 3260, 4360, 5080, 6520, 8720, 10160, 13040, 13843, 17767, 20701, 27686, 35534, 41402, 55372, 69215, 71068, 82804, 88835, 103505, 110744, 138430, 142136, 165608, 177670, 207010, 221488, 276860, 284272, 331216, 355340, 414020, 553720, 710680, 828040, 1107440, 1421360, 1656080, 2256409, 4512818, 9025636, 11282045, 18051272, 22564090, 36102544, 45128180, 90256360, 180512720]

約数ペア:

[(1, 180512720), (2, 90256360), (4, 45128180), (5, 36102544), (8, 22564090), (10, 18051272), (16, 11282045), (20, 9025636), (40, 4512818), (80, 2256409), (109, 1656080), (127, 1421360), (163, 1107440), (218, 828040), (254, 710680), (326, 553720), (436, 414020), (508, 355340), (545, 331216), (635, 284272), (652, 276860), (815, 221488), (872, 207010), (1016, 177670), (1090, 165608), (1270, 142136), (1304, 138430), (1630, 110744), (1744, 103505), (2032, 88835), (2180, 82804), (2540, 71068), (2608, 69215), (3260, 55372), (4360, 41402), (5080, 35534), (6520, 27686), (8720, 20701), (10160, 17767), (13040, 13843)]