1553995280

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{626611}}^1$

素因数の和:626655

約数の個数: 40

約数和(自身を含む): 3729594624

約数和(自身を除く): 2175599344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 626611, 1253222, 2506444, 3133055, 5012888, 6266110, 10025776, 12532220, 19424941, 25064440, 38849882, 50128880, 77699764, 97124705, 155399528, 194249410, 310799056, 388498820, 776997640, 1553995280]

約数ペア:

[(1, 1553995280), (2, 776997640), (4, 388498820), (5, 310799056), (8, 194249410), (10, 155399528), (16, 97124705), (20, 77699764), (31, 50128880), (40, 38849882), (62, 25064440), (80, 19424941), (124, 12532220), (155, 10025776), (248, 6266110), (310, 5012888), (496, 3133055), (620, 2506444), (1240, 1253222), (2480, 626611)]