12570620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{311}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 27675648

約数和(自身を除く): 15105028

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 311, 430, 470, 622, 860, 940, 1244, 1555, 2021, 3110, 4042, 6220, 8084, 10105, 13373, 14617, 20210, 26746, 29234, 40420, 53492, 58468, 66865, 73085, 133730, 146170, 267460, 292340, 628531, 1257062, 2514124, 3142655, 6285310, 12570620]

約数ペア:

[(1, 12570620), (2, 6285310), (4, 3142655), (5, 2514124), (10, 1257062), (20, 628531), (43, 292340), (47, 267460), (86, 146170), (94, 133730), (172, 73085), (188, 66865), (215, 58468), (235, 53492), (311, 40420), (430, 29234), (470, 26746), (622, 20210), (860, 14617), (940, 13373), (1244, 10105), (1555, 8084), (2021, 6220), (3110, 4042)]