10780720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{7927}}^1$

素因数の和:7957

約数の個数: 40

約数和(自身を含む): 26542944

約数和(自身を除く): 15762224

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 7927, 15854, 31708, 39635, 63416, 79270, 126832, 134759, 158540, 269518, 317080, 539036, 634160, 673795, 1078072, 1347590, 2156144, 2695180, 5390360, 10780720]

約数ペア:

[(1, 10780720), (2, 5390360), (4, 2695180), (5, 2156144), (8, 1347590), (10, 1078072), (16, 673795), (17, 634160), (20, 539036), (34, 317080), (40, 269518), (68, 158540), (80, 134759), (85, 126832), (136, 79270), (170, 63416), (272, 39635), (340, 31708), (680, 15854), (1360, 7927)]