16388016875

素因数分解:

$5^4\times {\mathrm{37}}^1\times {\mathrm{331}}^1\times {\mathrm{2141}}^1$

素因数の和:2529

約数の個数: 40

約数和(自身を含む): 21105331632

約数和(自身を除く): 4717314757

約数列:

[1, 5, 25, 37, 125, 185, 331, 625, 925, 1655, 2141, 4625, 8275, 10705, 12247, 23125, 41375, 53525, 61235, 79217, 206875, 267625, 306175, 396085, 708671, 1338125, 1530875, 1980425, 3543355, 7654375, 9902125, 17716775, 26220827, 49510625, 88583875, 131104135, 442919375, 655520675, 3277603375, 16388016875]

約数ペア:

[(1, 16388016875), (5, 3277603375), (25, 655520675), (37, 442919375), (125, 131104135), (185, 88583875), (331, 49510625), (625, 26220827), (925, 17716775), (1655, 9902125), (2141, 7654375), (4625, 3543355), (8275, 1980425), (10705, 1530875), (12247, 1338125), (23125, 708671), (41375, 396085), (53525, 306175), (61235, 267625), (79217, 206875)]