178791860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^4\times {\mathrm{313}}^1$

素因数の和:374

約数の個数: 60

約数和(自身を含む): 408049908

約数和(自身を除く): 229258048

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 313, 338, 626, 676, 845, 1252, 1565, 1690, 2197, 3130, 3380, 4069, 4394, 6260, 8138, 8788, 10985, 16276, 20345, 21970, 28561, 40690, 43940, 52897, 57122, 81380, 105794, 114244, 142805, 211588, 264485, 285610, 528970, 571220, 687661, 1057940, 1375322, 2750644, 3438305, 6876610, 8939593, 13753220, 17879186, 35758372, 44697965, 89395930, 178791860]

約数ペア:

[(1, 178791860), (2, 89395930), (4, 44697965), (5, 35758372), (10, 17879186), (13, 13753220), (20, 8939593), (26, 6876610), (52, 3438305), (65, 2750644), (130, 1375322), (169, 1057940), (260, 687661), (313, 571220), (338, 528970), (626, 285610), (676, 264485), (845, 211588), (1252, 142805), (1565, 114244), (1690, 105794), (2197, 81380), (3130, 57122), (3380, 52897), (4069, 43940), (4394, 40690), (6260, 28561), (8138, 21970), (8788, 20345), (10985, 16276)]