68215140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{54139}}^1$

素因数の和:54161

約数の個数: 72

約数和(自身を含む): 236483520

約数和(自身を除く): 168268380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 54139, 108278, 162417, 216556, 270695, 324834, 378973, 487251, 541390, 649668, 757946, 812085, 974502, 1082780, 1136919, 1515892, 1624170, 1894865, 1949004, 2273838, 2436255, 3248340, 3410757, 3789730, 4547676, 4872510, 5684595, 6821514, 7579460, 9745020, 11369190, 13643028, 17053785, 22738380, 34107570, 68215140]

約数ペア:

[(1, 68215140), (2, 34107570), (3, 22738380), (4, 17053785), (5, 13643028), (6, 11369190), (7, 9745020), (9, 7579460), (10, 6821514), (12, 5684595), (14, 4872510), (15, 4547676), (18, 3789730), (20, 3410757), (21, 3248340), (28, 2436255), (30, 2273838), (35, 1949004), (36, 1894865), (42, 1624170), (45, 1515892), (60, 1136919), (63, 1082780), (70, 974502), (84, 812085), (90, 757946), (105, 649668), (126, 541390), (140, 487251), (180, 378973), (210, 324834), (252, 270695), (315, 216556), (420, 162417), (630, 108278), (1260, 54139)]