1581318680

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{937}}^1\times {\mathrm{1361}}^1$

素因数の和:2340

約数の個数: 64

約数和(自身を含む): 3679361280

約数和(自身を除く): 2098042600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 937, 1240, 1361, 1874, 2722, 3748, 4685, 5444, 6805, 7496, 9370, 10888, 13610, 18740, 27220, 29047, 37480, 42191, 54440, 58094, 84382, 116188, 145235, 168764, 210955, 232376, 290470, 337528, 421910, 580940, 843820, 1161880, 1275257, 1687640, 2550514, 5101028, 6376285, 10202056, 12752570, 25505140, 39532967, 51010280, 79065934, 158131868, 197664835, 316263736, 395329670, 790659340, 1581318680]

約数ペア:

[(1, 1581318680), (2, 790659340), (4, 395329670), (5, 316263736), (8, 197664835), (10, 158131868), (20, 79065934), (31, 51010280), (40, 39532967), (62, 25505140), (124, 12752570), (155, 10202056), (248, 6376285), (310, 5101028), (620, 2550514), (937, 1687640), (1240, 1275257), (1361, 1161880), (1874, 843820), (2722, 580940), (3748, 421910), (4685, 337528), (5444, 290470), (6805, 232376), (7496, 210955), (9370, 168764), (10888, 145235), (13610, 116188), (18740, 84382), (27220, 58094), (29047, 54440), (37480, 42191)]