20788830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2287}}^1$

素因数の和:2401

約数の個数: 48

約数和(自身を含む): 54609984

約数和(自身を除く): 33821154

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 101, 202, 303, 505, 606, 909, 1010, 1515, 1818, 2287, 3030, 4545, 4574, 6861, 9090, 11435, 13722, 20583, 22870, 34305, 41166, 68610, 102915, 205830, 230987, 461974, 692961, 1154935, 1385922, 2078883, 2309870, 3464805, 4157766, 6929610, 10394415, 20788830]

約数ペア:

[(1, 20788830), (2, 10394415), (3, 6929610), (5, 4157766), (6, 3464805), (9, 2309870), (10, 2078883), (15, 1385922), (18, 1154935), (30, 692961), (45, 461974), (90, 230987), (101, 205830), (202, 102915), (303, 68610), (505, 41166), (606, 34305), (909, 22870), (1010, 20583), (1515, 13722), (1818, 11435), (2287, 9090), (3030, 6861), (4545, 4574)]