51115280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20611}}^1$

素因数の和:20655

約数の個数: 40

約数和(自身を含む): 122682624

約数和(自身を除く): 71567344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20611, 41222, 82444, 103055, 164888, 206110, 329776, 412220, 638941, 824440, 1277882, 1648880, 2555764, 3194705, 5111528, 6389410, 10223056, 12778820, 25557640, 51115280]

約数ペア:

[(1, 51115280), (2, 25557640), (4, 12778820), (5, 10223056), (8, 6389410), (10, 5111528), (16, 3194705), (20, 2555764), (31, 1648880), (40, 1277882), (62, 824440), (80, 638941), (124, 412220), (155, 329776), (248, 206110), (310, 164888), (496, 103055), (620, 82444), (1240, 41222), (2480, 20611)]