217956206015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{439}}^1\times {\mathrm{65629}}^1$

素因数の和:66179

約数の個数: 32

約数和(自身を含む): 280686384000

約数和(自身を除く): 62730177985

約数列:

[1, 5, 17, 85, 89, 439, 445, 1513, 2195, 7463, 7565, 37315, 39071, 65629, 195355, 328145, 664207, 1115693, 3321035, 5578465, 5840981, 28811131, 29204905, 99296677, 144055655, 489789227, 496483385, 2448946135, 2564190659, 12820953295, 43591241203, 217956206015]

約数ペア:

[(1, 217956206015), (5, 43591241203), (17, 12820953295), (85, 2564190659), (89, 2448946135), (439, 496483385), (445, 489789227), (1513, 144055655), (2195, 99296677), (7463, 29204905), (7565, 28811131), (37315, 5840981), (39071, 5578465), (65629, 3321035), (195355, 1115693), (328145, 664207)]