28744425

素因数分解:

$3^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{2971}}^1$

素因数の和:3030

約数の個数: 36

約数和(自身を含む): 52699504

約数和(自身を除く): 23955079

約数列:

[1, 3, 5, 9, 15, 25, 43, 45, 75, 129, 215, 225, 387, 645, 1075, 1935, 2971, 3225, 8913, 9675, 14855, 26739, 44565, 74275, 127753, 133695, 222825, 383259, 638765, 668475, 1149777, 1916295, 3193825, 5748885, 9581475, 28744425]

約数ペア:

[(1, 28744425), (3, 9581475), (5, 5748885), (9, 3193825), (15, 1916295), (25, 1149777), (43, 668475), (45, 638765), (75, 383259), (129, 222825), (215, 133695), (225, 127753), (387, 74275), (645, 44565), (1075, 26739), (1935, 14855), (2971, 9675), (3225, 8913)]