887499790

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{727}}^1$

素因数の和:961

約数の個数: 64

約数和(自身を含む): 1743565824

約数和(自身を除く): 856066034

約数列:

[1, 2, 5, 10, 17, 34, 43, 85, 86, 167, 170, 215, 334, 430, 727, 731, 835, 1454, 1462, 1670, 2839, 3635, 3655, 5678, 7181, 7270, 7310, 12359, 14195, 14362, 24718, 28390, 31261, 35905, 61795, 62522, 71810, 121409, 122077, 123590, 156305, 242818, 244154, 312610, 531437, 607045, 610385, 1062874, 1214090, 1220770, 2063953, 2657185, 4127906, 5220587, 5314370, 10319765, 10441174, 20639530, 26102935, 52205870, 88749979, 177499958, 443749895, 887499790]

約数ペア:

[(1, 887499790), (2, 443749895), (5, 177499958), (10, 88749979), (17, 52205870), (34, 26102935), (43, 20639530), (85, 10441174), (86, 10319765), (167, 5314370), (170, 5220587), (215, 4127906), (334, 2657185), (430, 2063953), (727, 1220770), (731, 1214090), (835, 1062874), (1454, 610385), (1462, 607045), (1670, 531437), (2839, 312610), (3635, 244154), (3655, 242818), (5678, 156305), (7181, 123590), (7270, 122077), (7310, 121409), (12359, 71810), (14195, 62522), (14362, 61795), (24718, 35905), (28390, 31261)]