20260625

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{421}}^1$

素因数の和:459

約数の個数: 40

約数和(自身を含む): 31639872

約数和(自身を除く): 11379247

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 421, 625, 875, 1375, 1925, 2105, 2947, 4375, 4631, 6875, 9625, 10525, 14735, 23155, 32417, 48125, 52625, 73675, 115775, 162085, 263125, 368375, 578875, 810425, 1841875, 2894375, 4052125, 20260625]

約数ペア:

[(1, 20260625), (5, 4052125), (7, 2894375), (11, 1841875), (25, 810425), (35, 578875), (55, 368375), (77, 263125), (125, 162085), (175, 115775), (275, 73675), (385, 52625), (421, 48125), (625, 32417), (875, 23155), (1375, 14735), (1925, 10525), (2105, 9625), (2947, 6875), (4375, 4631)]