20356310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:249

約数の個数: 64

約数和(自身を含む): 42747264

約数和(自身を除く): 22390954

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 61, 65, 85, 122, 130, 151, 170, 221, 302, 305, 442, 610, 755, 793, 1037, 1105, 1510, 1586, 1963, 2074, 2210, 2567, 3926, 3965, 5134, 5185, 7930, 9211, 9815, 10370, 12835, 13481, 18422, 19630, 25670, 26962, 33371, 46055, 66742, 67405, 92110, 119743, 134810, 156587, 166855, 239486, 313174, 333710, 598715, 782935, 1197430, 1565870, 2035631, 4071262, 10178155, 20356310]

約数ペア:

[(1, 20356310), (2, 10178155), (5, 4071262), (10, 2035631), (13, 1565870), (17, 1197430), (26, 782935), (34, 598715), (61, 333710), (65, 313174), (85, 239486), (122, 166855), (130, 156587), (151, 134810), (170, 119743), (221, 92110), (302, 67405), (305, 66742), (442, 46055), (610, 33371), (755, 26962), (793, 25670), (1037, 19630), (1105, 18422), (1510, 13481), (1586, 12835), (1963, 10370), (2074, 9815), (2210, 9211), (2567, 7930), (3926, 5185), (3965, 5134)]