1720794920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3309221}}^1$

素因数の和:3309245

約数の個数: 32

約数和(自身を含む): 4169619720

約数和(自身を除く): 2448824800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3309221, 6618442, 13236884, 16546105, 26473768, 33092210, 43019873, 66184420, 86039746, 132368840, 172079492, 215099365, 344158984, 430198730, 860397460, 1720794920]

約数ペア:

[(1, 1720794920), (2, 860397460), (4, 430198730), (5, 344158984), (8, 215099365), (10, 172079492), (13, 132368840), (20, 86039746), (26, 66184420), (40, 43019873), (52, 33092210), (65, 26473768), (104, 16546105), (130, 13236884), (260, 6618442), (520, 3309221)]