18475900

素因数分解:

$2^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:343

約数の個数: 72

約数和(自身を含む): 43434720

約数和(自身を除く): 24958820

約数列:

[1, 2, 4, 5, 10, 20, 23, 25, 29, 46, 50, 58, 92, 100, 115, 116, 145, 230, 277, 290, 460, 554, 575, 580, 667, 725, 1108, 1150, 1334, 1385, 1450, 2300, 2668, 2770, 2900, 3335, 5540, 6371, 6670, 6925, 8033, 12742, 13340, 13850, 16066, 16675, 25484, 27700, 31855, 32132, 33350, 40165, 63710, 66700, 80330, 127420, 159275, 160660, 184759, 200825, 318550, 369518, 401650, 637100, 739036, 803300, 923795, 1847590, 3695180, 4618975, 9237950, 18475900]

約数ペア:

[(1, 18475900), (2, 9237950), (4, 4618975), (5, 3695180), (10, 1847590), (20, 923795), (23, 803300), (25, 739036), (29, 637100), (46, 401650), (50, 369518), (58, 318550), (92, 200825), (100, 184759), (115, 160660), (116, 159275), (145, 127420), (230, 80330), (277, 66700), (290, 63710), (460, 40165), (554, 33350), (575, 32132), (580, 31855), (667, 27700), (725, 25484), (1108, 16675), (1150, 16066), (1334, 13850), (1385, 13340), (1450, 12742), (2300, 8033), (2668, 6925), (2770, 6670), (2900, 6371), (3335, 5540)]