13578920

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1051}}^1$

素因数の和:1098

約数の個数: 64

約数和(自身を含む): 34084800

約数和(自身を除く): 20505880

約数列:

[1, 2, 4, 5, 8, 10, 17, 19, 20, 34, 38, 40, 68, 76, 85, 95, 136, 152, 170, 190, 323, 340, 380, 646, 680, 760, 1051, 1292, 1615, 2102, 2584, 3230, 4204, 5255, 6460, 8408, 10510, 12920, 17867, 19969, 21020, 35734, 39938, 42040, 71468, 79876, 89335, 99845, 142936, 159752, 178670, 199690, 339473, 357340, 399380, 678946, 714680, 798760, 1357892, 1697365, 2715784, 3394730, 6789460, 13578920]

約数ペア:

[(1, 13578920), (2, 6789460), (4, 3394730), (5, 2715784), (8, 1697365), (10, 1357892), (17, 798760), (19, 714680), (20, 678946), (34, 399380), (38, 357340), (40, 339473), (68, 199690), (76, 178670), (85, 159752), (95, 142936), (136, 99845), (152, 89335), (170, 79876), (190, 71468), (323, 42040), (340, 39938), (380, 35734), (646, 21020), (680, 19969), (760, 17867), (1051, 12920), (1292, 10510), (1615, 8408), (2102, 6460), (2584, 5255), (3230, 4204)]