1680454780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{643}}^1\times {\mathrm{877}}^1$

素因数の和:1678

約数の個数: 48

約数和(自身を含む): 3562221600

約数和(自身を除く): 1881766820

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 643, 745, 877, 1286, 1490, 1754, 2572, 2980, 3215, 3508, 4385, 6430, 8770, 12860, 17540, 95807, 130673, 191614, 261346, 383228, 479035, 522692, 563911, 653365, 958070, 1127822, 1306730, 1916140, 2255644, 2613460, 2819555, 5639110, 11278220, 84022739, 168045478, 336090956, 420113695, 840227390, 1680454780]

約数ペア:

[(1, 1680454780), (2, 840227390), (4, 420113695), (5, 336090956), (10, 168045478), (20, 84022739), (149, 11278220), (298, 5639110), (596, 2819555), (643, 2613460), (745, 2255644), (877, 1916140), (1286, 1306730), (1490, 1127822), (1754, 958070), (2572, 653365), (2980, 563911), (3215, 522692), (3508, 479035), (4385, 383228), (6430, 261346), (8770, 191614), (12860, 130673), (17540, 95807)]