4278820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{2351}}^1$

素因数の和:2380

約数の個数: 48

約数和(自身を含む): 11063808

約数和(自身を除く): 6784988

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 2351, 4702, 9404, 11755, 16457, 23510, 30563, 32914, 47020, 61126, 65828, 82285, 122252, 152815, 164570, 213941, 305630, 329140, 427882, 611260, 855764, 1069705, 2139410, 4278820]

約数ペア:

[(1, 4278820), (2, 2139410), (4, 1069705), (5, 855764), (7, 611260), (10, 427882), (13, 329140), (14, 305630), (20, 213941), (26, 164570), (28, 152815), (35, 122252), (52, 82285), (65, 65828), (70, 61126), (91, 47020), (130, 32914), (140, 30563), (182, 23510), (260, 16457), (364, 11755), (455, 9404), (910, 4702), (1820, 2351)]