205701250

素因数分解:

$2^1\times 5^4\times {\mathrm{43}}^2\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 60

約数和(自身を含む): 399176910

約数和(自身を除く): 193475660

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 89, 125, 178, 215, 250, 430, 445, 625, 890, 1075, 1250, 1849, 2150, 2225, 3698, 3827, 4450, 5375, 7654, 9245, 10750, 11125, 18490, 19135, 22250, 26875, 38270, 46225, 53750, 55625, 92450, 95675, 111250, 164561, 191350, 231125, 329122, 462250, 478375, 822805, 956750, 1155625, 1645610, 2311250, 2391875, 4114025, 4783750, 8228050, 20570125, 41140250, 102850625, 205701250]

約数ペア:

[(1, 205701250), (2, 102850625), (5, 41140250), (10, 20570125), (25, 8228050), (43, 4783750), (50, 4114025), (86, 2391875), (89, 2311250), (125, 1645610), (178, 1155625), (215, 956750), (250, 822805), (430, 478375), (445, 462250), (625, 329122), (890, 231125), (1075, 191350), (1250, 164561), (1849, 111250), (2150, 95675), (2225, 92450), (3698, 55625), (3827, 53750), (4450, 46225), (5375, 38270), (7654, 26875), (9245, 22250), (10750, 19135), (11125, 18490)]