291247120

素因数分解:

$2^4\times 5^1\times {\mathrm{3640589}}^1$

素因数の和:3640602

約数の個数: 20

約数和(自身を含む): 677149740

約数和(自身を除く): 385902620

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640589, 7281178, 14562356, 18202945, 29124712, 36405890, 58249424, 72811780, 145623560, 291247120]

約数ペア:

[(1, 291247120), (2, 145623560), (4, 72811780), (5, 58249424), (8, 36405890), (10, 29124712), (16, 18202945), (20, 14562356), (40, 7281178), (80, 3640589)]