131479380

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16987}}^1$

素因数の和:17045

約数の個数: 72

約数和(自身を含む): 408119712

約数和(自身を除く): 276640332

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 7740, 16987, 33974, 50961, 67948, 84935, 101922, 152883, 169870, 203844, 254805, 305766, 339740, 509610, 611532, 730441, 764415, 1019220, 1460882, 1528830, 2191323, 2921764, 3057660, 3652205, 4382646, 6573969, 7304410, 8765292, 10956615, 13147938, 14608820, 21913230, 26295876, 32869845, 43826460, 65739690, 131479380]

約数ペア:

[(1, 131479380), (2, 65739690), (3, 43826460), (4, 32869845), (5, 26295876), (6, 21913230), (9, 14608820), (10, 13147938), (12, 10956615), (15, 8765292), (18, 7304410), (20, 6573969), (30, 4382646), (36, 3652205), (43, 3057660), (45, 2921764), (60, 2191323), (86, 1528830), (90, 1460882), (129, 1019220), (172, 764415), (180, 730441), (215, 611532), (258, 509610), (387, 339740), (430, 305766), (516, 254805), (645, 203844), (774, 169870), (860, 152883), (1290, 101922), (1548, 84935), (1935, 67948), (2580, 50961), (3870, 33974), (7740, 16987)]