215142320

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{2399}}^1$

素因数の和:2490

約数の個数: 80

約数和(自身を含む): 535680000

約数和(自身を除く): 320537680

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 59, 76, 80, 95, 118, 152, 190, 236, 295, 304, 380, 472, 590, 760, 944, 1121, 1180, 1520, 2242, 2360, 2399, 4484, 4720, 4798, 5605, 8968, 9596, 11210, 11995, 17936, 19192, 22420, 23990, 38384, 44840, 45581, 47980, 89680, 91162, 95960, 141541, 182324, 191920, 227905, 283082, 364648, 455810, 566164, 707705, 729296, 911620, 1132328, 1415410, 1823240, 2264656, 2689279, 2830820, 3646480, 5378558, 5661640, 10757116, 11323280, 13446395, 21514232, 26892790, 43028464, 53785580, 107571160, 215142320]

約数ペア:

[(1, 215142320), (2, 107571160), (4, 53785580), (5, 43028464), (8, 26892790), (10, 21514232), (16, 13446395), (19, 11323280), (20, 10757116), (38, 5661640), (40, 5378558), (59, 3646480), (76, 2830820), (80, 2689279), (95, 2264656), (118, 1823240), (152, 1415410), (190, 1132328), (236, 911620), (295, 729296), (304, 707705), (380, 566164), (472, 455810), (590, 364648), (760, 283082), (944, 227905), (1121, 191920), (1180, 182324), (1520, 141541), (2242, 95960), (2360, 91162), (2399, 89680), (4484, 47980), (4720, 45581), (4798, 44840), (5605, 38384), (8968, 23990), (9596, 22420), (11210, 19192), (11995, 17936)]