78510920

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{14983}}^1$

素因数の和:15125

約数の個数: 32

約数和(自身を含む): 178009920

約数和(自身を除く): 99499000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 5240, 14983, 29966, 59932, 74915, 119864, 149830, 299660, 599320, 1962773, 3925546, 7851092, 9813865, 15702184, 19627730, 39255460, 78510920]

約数ペア:

[(1, 78510920), (2, 39255460), (4, 19627730), (5, 15702184), (8, 9813865), (10, 7851092), (20, 3925546), (40, 1962773), (131, 599320), (262, 299660), (524, 149830), (655, 119864), (1048, 74915), (1310, 59932), (2620, 29966), (5240, 14983)]