209785890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{42901}}^1$

素因数の和:43074

約数の個数: 32

約数和(自身を含む): 506586816

約数和(自身を除く): 296800926

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 4890, 42901, 85802, 128703, 214505, 257406, 429010, 643515, 1287030, 6992863, 13985726, 20978589, 34964315, 41957178, 69928630, 104892945, 209785890]

約数ペア:

[(1, 209785890), (2, 104892945), (3, 69928630), (5, 41957178), (6, 34964315), (10, 20978589), (15, 13985726), (30, 6992863), (163, 1287030), (326, 643515), (489, 429010), (815, 257406), (978, 214505), (1630, 128703), (2445, 85802), (4890, 42901)]