648156700

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{1399}}^1$

素因数の和:1567

約数の個数: 72

約数和(自身を含む): 1454594400

約数和(自身を除く): 806437700

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 113, 164, 205, 226, 410, 452, 565, 820, 1025, 1130, 1399, 2050, 2260, 2798, 2825, 4100, 4633, 5596, 5650, 6995, 9266, 11300, 13990, 18532, 23165, 27980, 34975, 46330, 57359, 69950, 92660, 114718, 115825, 139900, 158087, 229436, 231650, 286795, 316174, 463300, 573590, 632348, 790435, 1147180, 1433975, 1580870, 2867950, 3161740, 3952175, 5735900, 6481567, 7904350, 12963134, 15808700, 25926268, 32407835, 64815670, 129631340, 162039175, 324078350, 648156700]

約数ペア:

[(1, 648156700), (2, 324078350), (4, 162039175), (5, 129631340), (10, 64815670), (20, 32407835), (25, 25926268), (41, 15808700), (50, 12963134), (82, 7904350), (100, 6481567), (113, 5735900), (164, 3952175), (205, 3161740), (226, 2867950), (410, 1580870), (452, 1433975), (565, 1147180), (820, 790435), (1025, 632348), (1130, 573590), (1399, 463300), (2050, 316174), (2260, 286795), (2798, 231650), (2825, 229436), (4100, 158087), (4633, 139900), (5596, 115825), (5650, 114718), (6995, 92660), (9266, 69950), (11300, 57359), (13990, 46330), (18532, 34975), (23165, 27980)]