16991220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6907}}^1$

素因数の和:6960

約数の個数: 48

約数和(自身を含む): 48742848

約数和(自身を除く): 31751628

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 41, 60, 82, 123, 164, 205, 246, 410, 492, 615, 820, 1230, 2460, 6907, 13814, 20721, 27628, 34535, 41442, 69070, 82884, 103605, 138140, 207210, 283187, 414420, 566374, 849561, 1132748, 1415935, 1699122, 2831870, 3398244, 4247805, 5663740, 8495610, 16991220]

約数ペア:

[(1, 16991220), (2, 8495610), (3, 5663740), (4, 4247805), (5, 3398244), (6, 2831870), (10, 1699122), (12, 1415935), (15, 1132748), (20, 849561), (30, 566374), (41, 414420), (60, 283187), (82, 207210), (123, 138140), (164, 103605), (205, 82884), (246, 69070), (410, 41442), (492, 34535), (615, 27628), (820, 20721), (1230, 13814), (2460, 6907)]