30515980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{2351}}^1$

素因数の和:2430

約数の個数: 48

約数和(自身を含む): 71124480

約数和(自身を除く): 40608500

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 59, 110, 118, 220, 236, 295, 590, 649, 1180, 1298, 2351, 2596, 3245, 4702, 6490, 9404, 11755, 12980, 23510, 25861, 47020, 51722, 103444, 129305, 138709, 258610, 277418, 517220, 554836, 693545, 1387090, 1525799, 2774180, 3051598, 6103196, 7628995, 15257990, 30515980]

約数ペア:

[(1, 30515980), (2, 15257990), (4, 7628995), (5, 6103196), (10, 3051598), (11, 2774180), (20, 1525799), (22, 1387090), (44, 693545), (55, 554836), (59, 517220), (110, 277418), (118, 258610), (220, 138709), (236, 129305), (295, 103444), (590, 51722), (649, 47020), (1180, 25861), (1298, 23510), (2351, 12980), (2596, 11755), (3245, 9404), (4702, 6490)]