205675020

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{26573}}^1$

素因数の和:26631

約数の個数: 72

約数和(自身を含む): 638413776

約数和(自身を除く): 432738756

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 26573, 53146, 79719, 106292, 132865, 159438, 239157, 265730, 318876, 398595, 478314, 531460, 797190, 956628, 1142639, 1195785, 1594380, 2285278, 2391570, 3427917, 4570556, 4783140, 5713195, 6855834, 10283751, 11426390, 13711668, 17139585, 20567502, 22852780, 34279170, 41135004, 51418755, 68558340, 102837510, 205675020]

約数ペア:

[(1, 205675020), (2, 102837510), (3, 68558340), (4, 51418755), (5, 41135004), (6, 34279170), (9, 22852780), (10, 20567502), (12, 17139585), (15, 13711668), (18, 11426390), (20, 10283751), (30, 6855834), (36, 5713195), (43, 4783140), (45, 4570556), (60, 3427917), (86, 2391570), (90, 2285278), (129, 1594380), (172, 1195785), (180, 1142639), (215, 956628), (258, 797190), (387, 531460), (430, 478314), (516, 398595), (645, 318876), (774, 265730), (860, 239157), (1290, 159438), (1548, 132865), (1935, 106292), (2580, 79719), (3870, 53146), (7740, 26573)]