68005140

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23131}}^1$

素因数の和:23157

約数の個数: 72

約数和(自身を含む): 221512032

約数和(自身を除く): 153506892

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 23131, 46262, 69393, 92524, 115655, 138786, 161917, 231310, 277572, 323834, 346965, 462620, 485751, 647668, 693930, 809585, 971502, 1133419, 1387860, 1619170, 1943004, 2266838, 2428755, 3238340, 3400257, 4533676, 4857510, 5667095, 6800514, 9715020, 11334190, 13601028, 17001285, 22668380, 34002570, 68005140]

約数ペア:

[(1, 68005140), (2, 34002570), (3, 22668380), (4, 17001285), (5, 13601028), (6, 11334190), (7, 9715020), (10, 6800514), (12, 5667095), (14, 4857510), (15, 4533676), (20, 3400257), (21, 3238340), (28, 2428755), (30, 2266838), (35, 1943004), (42, 1619170), (49, 1387860), (60, 1133419), (70, 971502), (84, 809585), (98, 693930), (105, 647668), (140, 485751), (147, 462620), (196, 346965), (210, 323834), (245, 277572), (294, 231310), (420, 161917), (490, 138786), (588, 115655), (735, 92524), (980, 69393), (1470, 46262), (2940, 23131)]