87640720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{35339}}^1$

素因数の和:35383

約数の個数: 40

約数和(自身を含む): 210343680

約数和(自身を除く): 122702960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 35339, 70678, 141356, 176695, 282712, 353390, 565424, 706780, 1095509, 1413560, 2191018, 2827120, 4382036, 5477545, 8764072, 10955090, 17528144, 21910180, 43820360, 87640720]

約数ペア:

[(1, 87640720), (2, 43820360), (4, 21910180), (5, 17528144), (8, 10955090), (10, 8764072), (16, 5477545), (20, 4382036), (31, 2827120), (40, 2191018), (62, 1413560), (80, 1095509), (124, 706780), (155, 565424), (248, 353390), (310, 282712), (496, 176695), (620, 141356), (1240, 70678), (2480, 35339)]