991147825

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:602

約数の個数: 48

約数和(自身を含む): 1334636800

約数和(自身を除く): 343488975

約数列:

[1, 5, 19, 25, 61, 79, 95, 305, 395, 433, 475, 1159, 1501, 1525, 1975, 2165, 4819, 5795, 7505, 8227, 10825, 24095, 26413, 28975, 34207, 37525, 41135, 91561, 120475, 132065, 171035, 205675, 457805, 501847, 649933, 660325, 855175, 2086627, 2289025, 2509235, 3249665, 10433135, 12546175, 16248325, 39645913, 52165675, 198229565, 991147825]

約数ペア:

[(1, 991147825), (5, 198229565), (19, 52165675), (25, 39645913), (61, 16248325), (79, 12546175), (95, 10433135), (305, 3249665), (395, 2509235), (433, 2289025), (475, 2086627), (1159, 855175), (1501, 660325), (1525, 649933), (1975, 501847), (2165, 457805), (4819, 205675), (5795, 171035), (7505, 132065), (8227, 120475), (10825, 91561), (24095, 41135), (26413, 37525), (28975, 34207)]