25921980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2939}}^1$

素因数の和:2968

約数の個数: 108

約数和(自身を含む): 91498680

約数和(自身を除く): 65576700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2939, 2940, 4410, 5878, 8817, 8820, 11756, 14695, 17634, 20573, 26451, 29390, 35268, 41146, 44085, 52902, 58780, 61719, 82292, 88170, 102865, 105804, 123438, 132255, 144011, 176340, 185157, 205730, 246876, 264510, 288022, 308595, 370314, 411460, 432033, 529020, 576044, 617190, 720055, 740628, 864066, 925785, 1234380, 1296099, 1440110, 1728132, 1851570, 2160165, 2592198, 2880220, 3703140, 4320330, 5184396, 6480495, 8640660, 12960990, 25921980]

約数ペア:

[(1, 25921980), (2, 12960990), (3, 8640660), (4, 6480495), (5, 5184396), (6, 4320330), (7, 3703140), (9, 2880220), (10, 2592198), (12, 2160165), (14, 1851570), (15, 1728132), (18, 1440110), (20, 1296099), (21, 1234380), (28, 925785), (30, 864066), (35, 740628), (36, 720055), (42, 617190), (45, 576044), (49, 529020), (60, 432033), (63, 411460), (70, 370314), (84, 308595), (90, 288022), (98, 264510), (105, 246876), (126, 205730), (140, 185157), (147, 176340), (180, 144011), (196, 132255), (210, 123438), (245, 105804), (252, 102865), (294, 88170), (315, 82292), (420, 61719), (441, 58780), (490, 52902), (588, 44085), (630, 41146), (735, 35268), (882, 29390), (980, 26451), (1260, 20573), (1470, 17634), (1764, 14695), (2205, 11756), (2939, 8820), (2940, 8817), (4410, 5878)]