291248840

素因数分解:

$2^3\times 5^1\times {\mathrm{2269}}^1\times {\mathrm{3209}}^1$

素因数の和:5489

約数の個数: 32

約数和(自身を含む): 655803000

約数和(自身を除く): 364554160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2269, 3209, 4538, 6418, 9076, 11345, 12836, 16045, 18152, 22690, 25672, 32090, 45380, 64180, 90760, 128360, 7281221, 14562442, 29124884, 36406105, 58249768, 72812210, 145624420, 291248840]

約数ペア:

[(1, 291248840), (2, 145624420), (4, 72812210), (5, 58249768), (8, 36406105), (10, 29124884), (20, 14562442), (40, 7281221), (2269, 128360), (3209, 90760), (4538, 64180), (6418, 45380), (9076, 32090), (11345, 25672), (12836, 22690), (16045, 18152)]