211120390

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{337}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 422472960

約数和(自身を除く): 211352570

約数列:

[1, 2, 5, 10, 13, 26, 61, 65, 79, 122, 130, 158, 305, 337, 395, 610, 674, 790, 793, 1027, 1586, 1685, 2054, 3370, 3965, 4381, 4819, 5135, 7930, 8762, 9638, 10270, 20557, 21905, 24095, 26623, 41114, 43810, 48190, 53246, 62647, 102785, 125294, 133115, 205570, 266230, 267241, 313235, 346099, 534482, 626470, 692198, 1336205, 1624003, 1730495, 2672410, 3248006, 3460990, 8120015, 16240030, 21112039, 42224078, 105560195, 211120390]

約数ペア:

[(1, 211120390), (2, 105560195), (5, 42224078), (10, 21112039), (13, 16240030), (26, 8120015), (61, 3460990), (65, 3248006), (79, 2672410), (122, 1730495), (130, 1624003), (158, 1336205), (305, 692198), (337, 626470), (395, 534482), (610, 346099), (674, 313235), (790, 267241), (793, 266230), (1027, 205570), (1586, 133115), (1685, 125294), (2054, 102785), (3370, 62647), (3965, 53246), (4381, 48190), (4819, 43810), (5135, 41114), (7930, 26623), (8762, 24095), (9638, 21905), (10270, 20557)]