828540520

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{390821}}^1$

素因数の和:390885

約数の個数: 32

約数和(自身を含む): 1899394920

約数和(自身を除く): 1070854400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 390821, 781642, 1563284, 1954105, 3126568, 3908210, 7816420, 15632840, 20713513, 41427026, 82854052, 103567565, 165708104, 207135130, 414270260, 828540520]

約数ペア:

[(1, 828540520), (2, 414270260), (4, 207135130), (5, 165708104), (8, 103567565), (10, 82854052), (20, 41427026), (40, 20713513), (53, 15632840), (106, 7816420), (212, 3908210), (265, 3126568), (424, 1954105), (530, 1563284), (1060, 781642), (2120, 390821)]