217666895

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{227}}^1\times {\mathrm{389}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 288100800

約数和(自身を除く): 70433905

約数列:

[1, 5, 17, 29, 85, 145, 227, 389, 493, 1135, 1945, 2465, 3859, 6583, 6613, 11281, 19295, 32915, 33065, 56405, 88303, 111911, 191777, 441515, 559555, 958885, 1501151, 2560787, 7505755, 12803935, 43533379, 217666895]

約数ペア:

[(1, 217666895), (5, 43533379), (17, 12803935), (29, 7505755), (85, 2560787), (145, 1501151), (227, 958885), (389, 559555), (493, 441515), (1135, 191777), (1945, 111911), (2465, 88303), (3859, 56405), (6583, 33065), (6613, 32915), (11281, 19295)]