1985485840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1909121}}^1$

素因数の和:1909147

約数の個数: 40

約数和(自身を含む): 4971353688

約数和(自身を除く): 2985867848

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 1909121, 3818242, 7636484, 9545605, 15272968, 19091210, 24818573, 30545936, 38182420, 49637146, 76364840, 99274292, 124092865, 152729680, 198548584, 248185730, 397097168, 496371460, 992742920, 1985485840]

約数ペア:

[(1, 1985485840), (2, 992742920), (4, 496371460), (5, 397097168), (8, 248185730), (10, 198548584), (13, 152729680), (16, 124092865), (20, 99274292), (26, 76364840), (40, 49637146), (52, 38182420), (65, 30545936), (80, 24818573), (104, 19091210), (130, 15272968), (208, 9545605), (260, 7636484), (520, 3818242), (1040, 1909121)]