19996150

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 38854656

約数和(自身を除く): 18858506

約数列:

[1, 2, 5, 10, 25, 47, 50, 67, 94, 127, 134, 235, 254, 335, 470, 635, 670, 1175, 1270, 1675, 2350, 3149, 3175, 3350, 5969, 6298, 6350, 8509, 11938, 15745, 17018, 29845, 31490, 42545, 59690, 78725, 85090, 149225, 157450, 212725, 298450, 399923, 425450, 799846, 1999615, 3999230, 9998075, 19996150]

約数ペア:

[(1, 19996150), (2, 9998075), (5, 3999230), (10, 1999615), (25, 799846), (47, 425450), (50, 399923), (67, 298450), (94, 212725), (127, 157450), (134, 149225), (235, 85090), (254, 78725), (335, 59690), (470, 42545), (635, 31490), (670, 29845), (1175, 17018), (1270, 15745), (1675, 11938), (2350, 8509), (3149, 6350), (3175, 6298), (3350, 5969)]