66674920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{128221}}^1$

素因数の和:128245

約数の個数: 32

約数和(自身を含む): 161559720

約数和(自身を除く): 94884800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 128221, 256442, 512884, 641105, 1025768, 1282210, 1666873, 2564420, 3333746, 5128840, 6667492, 8334365, 13334984, 16668730, 33337460, 66674920]

約数ペア:

[(1, 66674920), (2, 33337460), (4, 16668730), (5, 13334984), (8, 8334365), (10, 6667492), (13, 5128840), (20, 3333746), (26, 2564420), (40, 1666873), (52, 1282210), (65, 1025768), (104, 641105), (130, 512884), (260, 256442), (520, 128221)]