661569195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1\times {\mathrm{811}}^1$

素因数の和:1300

約数の個数: 64

約数和(自身を含む): 1285272576

約数和(自身を除く): 623703381

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 457, 595, 811, 1371, 1785, 2285, 2433, 3199, 4055, 5677, 6855, 7769, 9597, 12165, 13787, 15995, 17031, 23307, 28385, 38845, 41361, 47985, 54383, 68935, 85155, 96509, 116535, 163149, 206805, 271915, 289527, 370627, 482545, 815745, 1111881, 1447635, 1853135, 2594389, 5559405, 6300659, 7783167, 12971945, 18901977, 31503295, 38915835, 44104613, 94509885, 132313839, 220523065, 661569195]

約数ペア:

[(1, 661569195), (3, 220523065), (5, 132313839), (7, 94509885), (15, 44104613), (17, 38915835), (21, 31503295), (35, 18901977), (51, 12971945), (85, 7783167), (105, 6300659), (119, 5559405), (255, 2594389), (357, 1853135), (457, 1447635), (595, 1111881), (811, 815745), (1371, 482545), (1785, 370627), (2285, 289527), (2433, 271915), (3199, 206805), (4055, 163149), (5677, 116535), (6855, 96509), (7769, 85155), (9597, 68935), (12165, 54383), (13787, 47985), (15995, 41361), (17031, 38845), (23307, 28385)]