381140320

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19687}}^1$

素因数の和:19724

約数の個数: 72

約数和(自身を含む): 989794512

約数和(自身を除く): 608654192

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 80, 88, 110, 121, 160, 176, 220, 242, 352, 440, 484, 605, 880, 968, 1210, 1760, 1936, 2420, 3872, 4840, 9680, 19360, 19687, 39374, 78748, 98435, 157496, 196870, 216557, 314992, 393740, 433114, 629984, 787480, 866228, 1082785, 1574960, 1732456, 2165570, 2382127, 3149920, 3464912, 4331140, 4764254, 6929824, 8662280, 9528508, 11910635, 17324560, 19057016, 23821270, 34649120, 38114032, 47642540, 76228064, 95285080, 190570160, 381140320]

約数ペア:

[(1, 381140320), (2, 190570160), (4, 95285080), (5, 76228064), (8, 47642540), (10, 38114032), (11, 34649120), (16, 23821270), (20, 19057016), (22, 17324560), (32, 11910635), (40, 9528508), (44, 8662280), (55, 6929824), (80, 4764254), (88, 4331140), (110, 3464912), (121, 3149920), (160, 2382127), (176, 2165570), (220, 1732456), (242, 1574960), (352, 1082785), (440, 866228), (484, 787480), (605, 629984), (880, 433114), (968, 393740), (1210, 314992), (1760, 216557), (1936, 196870), (2420, 157496), (3872, 98435), (4840, 78748), (9680, 39374), (19360, 19687)]