156777560

素因数分解:

$2^3\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{2011}}^1$

素因数の和:3971

約数の個数: 32

約数和(自身を含む): 353106000

約数和(自身を除く): 196328440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1949, 2011, 3898, 4022, 7796, 8044, 9745, 10055, 15592, 16088, 19490, 20110, 38980, 40220, 77960, 80440, 3919439, 7838878, 15677756, 19597195, 31355512, 39194390, 78388780, 156777560]

約数ペア:

[(1, 156777560), (2, 78388780), (4, 39194390), (5, 31355512), (8, 19597195), (10, 15677756), (20, 7838878), (40, 3919439), (1949, 80440), (2011, 77960), (3898, 40220), (4022, 38980), (7796, 20110), (8044, 19490), (9745, 16088), (10055, 15592)]