653660

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:75

約数の個数: 72

約数和(自身を含む): 1723680

約数和(自身を除く): 1070020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 28, 29, 35, 46, 49, 58, 70, 92, 98, 115, 116, 140, 145, 161, 196, 203, 230, 245, 290, 322, 406, 460, 490, 580, 644, 667, 805, 812, 980, 1015, 1127, 1334, 1421, 1610, 2030, 2254, 2668, 2842, 3220, 3335, 4060, 4508, 4669, 5635, 5684, 6670, 7105, 9338, 11270, 13340, 14210, 18676, 22540, 23345, 28420, 32683, 46690, 65366, 93380, 130732, 163415, 326830, 653660]

約数ペア:

[(1, 653660), (2, 326830), (4, 163415), (5, 130732), (7, 93380), (10, 65366), (14, 46690), (20, 32683), (23, 28420), (28, 23345), (29, 22540), (35, 18676), (46, 14210), (49, 13340), (58, 11270), (70, 9338), (92, 7105), (98, 6670), (115, 5684), (116, 5635), (140, 4669), (145, 4508), (161, 4060), (196, 3335), (203, 3220), (230, 2842), (245, 2668), (290, 2254), (322, 2030), (406, 1610), (460, 1421), (490, 1334), (580, 1127), (644, 1015), (667, 980), (805, 812)]