81315896

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31469}}^1$

素因数の和:31511

約数の個数: 32

約数和(自身を含む): 169938000

約数和(自身を除く): 88622104

約数列:

[1, 2, 4, 8, 17, 19, 34, 38, 68, 76, 136, 152, 323, 646, 1292, 2584, 31469, 62938, 125876, 251752, 534973, 597911, 1069946, 1195822, 2139892, 2391644, 4279784, 4783288, 10164487, 20328974, 40657948, 81315896]

約数ペア:

[(1, 81315896), (2, 40657948), (4, 20328974), (8, 10164487), (17, 4783288), (19, 4279784), (34, 2391644), (38, 2139892), (68, 1195822), (76, 1069946), (136, 597911), (152, 534973), (323, 251752), (646, 125876), (1292, 62938), (2584, 31469)]