18668450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{457}}^1$

素因数の和:531

約数の個数: 48

約数和(自身を含む): 37482720

約数和(自身を除く): 18814270

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 190, 215, 430, 457, 475, 817, 914, 950, 1075, 1634, 2150, 2285, 4085, 4570, 8170, 8683, 11425, 17366, 19651, 20425, 22850, 39302, 40850, 43415, 86830, 98255, 196510, 217075, 373369, 434150, 491275, 746738, 982550, 1866845, 3733690, 9334225, 18668450]

約数ペア:

[(1, 18668450), (2, 9334225), (5, 3733690), (10, 1866845), (19, 982550), (25, 746738), (38, 491275), (43, 434150), (50, 373369), (86, 217075), (95, 196510), (190, 98255), (215, 86830), (430, 43415), (457, 40850), (475, 39302), (817, 22850), (914, 20425), (950, 19651), (1075, 17366), (1634, 11425), (2150, 8683), (2285, 8170), (4085, 4570)]