64513987.000000000

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{88789}}^1$

素因数の和:88816

約数の個数: 64

約数和(自身を含む): 447501600

約数和(自身を除く): 308990760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 78, 104, 120, 130, 156, 195, 260, 312, 390, 520, 780, 1560, 88789, 177578, 266367, 355156, 443945, 532734, 710312, 887890, 1065468, 1154257, 1331835, 1775780, 2130936, 2308514, 2663670, 3462771, 3551560, 4617028, 5327340, 5771285, 6925542, 9234056, 10654680, 11542570, 13851084, 17313855, 23085140, 27702168, 34627710, 46170280, 69255420, 138510840]

約数ペア:

[(1, 138510840), (2, 69255420), (3, 46170280), (4, 34627710), (5, 27702168), (6, 23085140), (8, 17313855), (10, 13851084), (12, 11542570), (13, 10654680), (15, 9234056), (20, 6925542), (24, 5771285), (26, 5327340), (30, 4617028), (39, 3551560), (40, 3462771), (52, 2663670), (60, 2308514), (65, 2130936), (78, 1775780), (104, 1331835), (120, 1154257), (130, 1065468), (156, 887890), (195, 710312), (260, 532734), (312, 443945), (390, 355156), (520, 266367), (780, 177578), (1560, 88789)]