25790000

素因数分解:

$2^4\times 5^4\times {\mathrm{2579}}^1$

素因数の和:2607

約数の個数: 50

約数和(自身を含む): 62464380

約数和(自身を除く): 36674380

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 125, 200, 250, 400, 500, 625, 1000, 1250, 2000, 2500, 2579, 5000, 5158, 10000, 10316, 12895, 20632, 25790, 41264, 51580, 64475, 103160, 128950, 206320, 257900, 322375, 515800, 644750, 1031600, 1289500, 1611875, 2579000, 3223750, 5158000, 6447500, 12895000, 25790000]

約数ペア:

[(1, 25790000), (2, 12895000), (4, 6447500), (5, 5158000), (8, 3223750), (10, 2579000), (16, 1611875), (20, 1289500), (25, 1031600), (40, 644750), (50, 515800), (80, 322375), (100, 257900), (125, 206320), (200, 128950), (250, 103160), (400, 64475), (500, 51580), (625, 41264), (1000, 25790), (1250, 20632), (2000, 12895), (2500, 10316), (2579, 10000), (5000, 5158)]