290445520

素因数分解:

$2^4\times 5^1\times {\mathrm{971}}^1\times {\mathrm{3739}}^1$

素因数の和:4723

約数の個数: 40

約数和(自身を含む): 676162080

約数和(自身を除く): 385716560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 971, 1942, 3739, 3884, 4855, 7478, 7768, 9710, 14956, 15536, 18695, 19420, 29912, 37390, 38840, 59824, 74780, 77680, 149560, 299120, 3630569, 7261138, 14522276, 18152845, 29044552, 36305690, 58089104, 72611380, 145222760, 290445520]

約数ペア:

[(1, 290445520), (2, 145222760), (4, 72611380), (5, 58089104), (8, 36305690), (10, 29044552), (16, 18152845), (20, 14522276), (40, 7261138), (80, 3630569), (971, 299120), (1942, 149560), (3739, 77680), (3884, 74780), (4855, 59824), (7478, 38840), (7768, 37390), (9710, 29912), (14956, 19420), (15536, 18695)]