208030340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{51239}}^1$

素因数の和:51284

約数の個数: 48

約数和(自身を含む): 516499200

約数和(自身を除く): 308468860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 51239, 102478, 204956, 256195, 358673, 512390, 717346, 1024780, 1434692, 1485931, 1793365, 2971862, 3586730, 5943724, 7173460, 7429655, 10401517, 14859310, 20803034, 29718620, 41606068, 52007585, 104015170, 208030340]

約数ペア:

[(1, 208030340), (2, 104015170), (4, 52007585), (5, 41606068), (7, 29718620), (10, 20803034), (14, 14859310), (20, 10401517), (28, 7429655), (29, 7173460), (35, 5943724), (58, 3586730), (70, 2971862), (116, 1793365), (140, 1485931), (145, 1434692), (203, 1024780), (290, 717346), (406, 512390), (580, 358673), (812, 256195), (1015, 204956), (2030, 102478), (4060, 51239)]