68719140

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{54539}}^1$

素因数の和:54561

約数の個数: 72

約数和(自身を含む): 238230720

約数和(自身を除く): 169511580

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, 54539, 109078, 163617, 218156, 272695, 327234, 381773, 490851, 545390, 654468, 763546, 818085, 981702, 1090780, 1145319, 1527092, 1636170, 1908865, 1963404, 2290638, 2454255, 3272340, 3435957, 3817730, 4581276, 4908510, 5726595, 6871914, 7635460, 9817020, 11453190, 13743828, 17179785, 22906380, 34359570, 68719140]

約数ペア:

[(1, 68719140), (2, 34359570), (3, 22906380), (4, 17179785), (5, 13743828), (6, 11453190), (7, 9817020), (9, 7635460), (10, 6871914), (12, 5726595), (14, 4908510), (15, 4581276), (18, 3817730), (20, 3435957), (21, 3272340), (28, 2454255), (30, 2290638), (35, 1963404), (36, 1908865), (42, 1636170), (45, 1527092), (60, 1145319), (63, 1090780), (70, 981702), (84, 818085), (90, 763546), (105, 654468), (126, 545390), (140, 490851), (180, 381773), (210, 327234), (252, 272695), (315, 218156), (420, 163617), (630, 109078), (1260, 54539)]