20216570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1$

素因数の和:623

約数の個数: 64

約数和(自身を含む): 44323200

約数和(自身を除く): 24106630

約数列:

[1, 2, 5, 10, 11, 17, 19, 22, 34, 38, 55, 85, 95, 110, 170, 187, 190, 209, 323, 374, 418, 569, 646, 935, 1045, 1138, 1615, 1870, 2090, 2845, 3230, 3553, 5690, 6259, 7106, 9673, 10811, 12518, 17765, 19346, 21622, 31295, 35530, 48365, 54055, 62590, 96730, 106403, 108110, 118921, 183787, 212806, 237842, 367574, 532015, 594605, 918935, 1064030, 1189210, 1837870, 2021657, 4043314, 10108285, 20216570]

約数ペア:

[(1, 20216570), (2, 10108285), (5, 4043314), (10, 2021657), (11, 1837870), (17, 1189210), (19, 1064030), (22, 918935), (34, 594605), (38, 532015), (55, 367574), (85, 237842), (95, 212806), (110, 183787), (170, 118921), (187, 108110), (190, 106403), (209, 96730), (323, 62590), (374, 54055), (418, 48365), (569, 35530), (646, 31295), (935, 21622), (1045, 19346), (1138, 17765), (1615, 12518), (1870, 10811), (2090, 9673), (2845, 7106), (3230, 6259), (3553, 5690)]