515142280

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{67427}}^1$

素因数の和:67629

約数の個数: 32

約数和(自身を含む): 1165155840

約数和(自身を除く): 650013560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 67427, 134854, 269708, 337135, 539416, 674270, 1348540, 2697080, 12878557, 25757114, 51514228, 64392785, 103028456, 128785570, 257571140, 515142280]

約数ペア:

[(1, 515142280), (2, 257571140), (4, 128785570), (5, 103028456), (8, 64392785), (10, 51514228), (20, 25757114), (40, 12878557), (191, 2697080), (382, 1348540), (764, 674270), (955, 539416), (1528, 337135), (1910, 269708), (3820, 134854), (7640, 67427)]