12774920

素因数分解:

$2^3\times 5^1\times {\mathrm{521}}^1\times {\mathrm{613}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 28845720

約数和(自身を除く): 16070800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 521, 613, 1042, 1226, 2084, 2452, 2605, 3065, 4168, 4904, 5210, 6130, 10420, 12260, 20840, 24520, 319373, 638746, 1277492, 1596865, 2554984, 3193730, 6387460, 12774920]

約数ペア:

[(1, 12774920), (2, 6387460), (4, 3193730), (5, 2554984), (8, 1596865), (10, 1277492), (20, 638746), (40, 319373), (521, 24520), (613, 20840), (1042, 12260), (1226, 10420), (2084, 6130), (2452, 5210), (2605, 4904), (3065, 4168)]