25378750

素因数分解:

$2^1\times 5^4\times {\mathrm{79}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 40

約数和(自身を含む): 48359520

約数和(自身を除く): 22980770

約数列:

[1, 2, 5, 10, 25, 50, 79, 125, 158, 250, 257, 395, 514, 625, 790, 1250, 1285, 1975, 2570, 3950, 6425, 9875, 12850, 19750, 20303, 32125, 40606, 49375, 64250, 98750, 101515, 160625, 203030, 321250, 507575, 1015150, 2537875, 5075750, 12689375, 25378750]

約数ペア:

[(1, 25378750), (2, 12689375), (5, 5075750), (10, 2537875), (25, 1015150), (50, 507575), (79, 321250), (125, 203030), (158, 160625), (250, 101515), (257, 98750), (395, 64250), (514, 49375), (625, 40606), (790, 32125), (1250, 20303), (1285, 19750), (1975, 12850), (2570, 9875), (3950, 6425)]