66868880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{569}}^1$

素因数の和:708

約数の個数: 80

約数和(自身を含む): 169207920

約数和(自身を除く): 102339040

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 113, 130, 208, 226, 260, 452, 520, 565, 569, 904, 1040, 1130, 1138, 1469, 1808, 2260, 2276, 2845, 2938, 4520, 4552, 5690, 5876, 7345, 7397, 9040, 9104, 11380, 11752, 14690, 14794, 22760, 23504, 29380, 29588, 36985, 45520, 58760, 59176, 64297, 73970, 117520, 118352, 128594, 147940, 257188, 295880, 321485, 514376, 591760, 642970, 835861, 1028752, 1285940, 1671722, 2571880, 3343444, 4179305, 5143760, 6686888, 8358610, 13373776, 16717220, 33434440, 66868880]

約数ペア:

[(1, 66868880), (2, 33434440), (4, 16717220), (5, 13373776), (8, 8358610), (10, 6686888), (13, 5143760), (16, 4179305), (20, 3343444), (26, 2571880), (40, 1671722), (52, 1285940), (65, 1028752), (80, 835861), (104, 642970), (113, 591760), (130, 514376), (208, 321485), (226, 295880), (260, 257188), (452, 147940), (520, 128594), (565, 118352), (569, 117520), (904, 73970), (1040, 64297), (1130, 59176), (1138, 58760), (1469, 45520), (1808, 36985), (2260, 29588), (2276, 29380), (2845, 23504), (2938, 22760), (4520, 14794), (4552, 14690), (5690, 11752), (5876, 11380), (7345, 9104), (7397, 9040)]