64636720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47527}}^1$

素因数の和:47557

約数の個数: 40

約数和(自身を含む): 159123744

約数和(自身を除く): 94487024

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 47527, 95054, 190108, 237635, 380216, 475270, 760432, 807959, 950540, 1615918, 1901080, 3231836, 3802160, 4039795, 6463672, 8079590, 12927344, 16159180, 32318360, 64636720]

約数ペア:

[(1, 64636720), (2, 32318360), (4, 16159180), (5, 12927344), (8, 8079590), (10, 6463672), (16, 4039795), (17, 3802160), (20, 3231836), (34, 1901080), (40, 1615918), (68, 950540), (80, 807959), (85, 760432), (136, 475270), (170, 380216), (272, 237635), (340, 190108), (680, 95054), (1360, 47527)]