18791950

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:313

約数の個数: 48

約数和(自身を含む): 37319040

約数和(自身を除く): 18527090

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 131, 151, 190, 262, 302, 475, 655, 755, 950, 1310, 1510, 2489, 2869, 3275, 3775, 4978, 5738, 6550, 7550, 12445, 14345, 19781, 24890, 28690, 39562, 62225, 71725, 98905, 124450, 143450, 197810, 375839, 494525, 751678, 989050, 1879195, 3758390, 9395975, 18791950]

約数ペア:

[(1, 18791950), (2, 9395975), (5, 3758390), (10, 1879195), (19, 989050), (25, 751678), (38, 494525), (50, 375839), (95, 197810), (131, 143450), (151, 124450), (190, 98905), (262, 71725), (302, 62225), (475, 39562), (655, 28690), (755, 24890), (950, 19781), (1310, 14345), (1510, 12445), (2489, 7550), (2869, 6550), (3275, 5738), (3775, 4978)]