128408072

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1231}}^1$

素因数の和:1326

約数の個数: 64

約数和(自身を含む): 279417600

約数和(自身を除く): 151009528

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 59, 68, 104, 118, 136, 221, 236, 442, 472, 767, 884, 1003, 1231, 1534, 1768, 2006, 2462, 3068, 4012, 4924, 6136, 8024, 9848, 13039, 16003, 20927, 26078, 32006, 41854, 52156, 64012, 72629, 83708, 104312, 128024, 145258, 167416, 272051, 290516, 544102, 581032, 944177, 1088204, 1234693, 1888354, 2176408, 2469386, 3776708, 4938772, 7553416, 9877544, 16051009, 32102018, 64204036, 128408072]

約数ペア:

[(1, 128408072), (2, 64204036), (4, 32102018), (8, 16051009), (13, 9877544), (17, 7553416), (26, 4938772), (34, 3776708), (52, 2469386), (59, 2176408), (68, 1888354), (104, 1234693), (118, 1088204), (136, 944177), (221, 581032), (236, 544102), (442, 290516), (472, 272051), (767, 167416), (884, 145258), (1003, 128024), (1231, 104312), (1534, 83708), (1768, 72629), (2006, 64012), (2462, 52156), (3068, 41854), (4012, 32006), (4924, 26078), (6136, 20927), (8024, 16003), (9848, 13039)]