2030980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 4959360

約数和(自身を除く): 2928380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 163, 178, 326, 356, 445, 623, 652, 815, 890, 1141, 1246, 1630, 1780, 2282, 2492, 3115, 3260, 4564, 5705, 6230, 11410, 12460, 14507, 22820, 29014, 58028, 72535, 101549, 145070, 203098, 290140, 406196, 507745, 1015490, 2030980]

約数ペア:

[(1, 2030980), (2, 1015490), (4, 507745), (5, 406196), (7, 290140), (10, 203098), (14, 145070), (20, 101549), (28, 72535), (35, 58028), (70, 29014), (89, 22820), (140, 14507), (163, 12460), (178, 11410), (326, 6230), (356, 5705), (445, 4564), (623, 3260), (652, 3115), (815, 2492), (890, 2282), (1141, 1780), (1246, 1630)]