398994850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{151}}^1\times {\mathrm{1229}}^1$

素因数の和:1435

約数の個数: 48

約数和(自身を含む): 765040320

約数和(自身を除く): 366045470

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 151, 215, 302, 430, 755, 1075, 1229, 1510, 2150, 2458, 3775, 6145, 6493, 7550, 12290, 12986, 30725, 32465, 52847, 61450, 64930, 105694, 162325, 185579, 264235, 324650, 371158, 528470, 927895, 1321175, 1855790, 2642350, 4639475, 7979897, 9278950, 15959794, 39899485, 79798970, 199497425, 398994850]

約数ペア:

[(1, 398994850), (2, 199497425), (5, 79798970), (10, 39899485), (25, 15959794), (43, 9278950), (50, 7979897), (86, 4639475), (151, 2642350), (215, 1855790), (302, 1321175), (430, 927895), (755, 528470), (1075, 371158), (1229, 324650), (1510, 264235), (2150, 185579), (2458, 162325), (3775, 105694), (6145, 64930), (6493, 61450), (7550, 52847), (12290, 32465), (12986, 30725)]