18953450

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1$

素因数の和:383

約数の個数: 48

約数和(自身を含む): 37765440

約数和(自身を除く): 18811990

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 71, 95, 142, 190, 281, 355, 475, 562, 710, 950, 1349, 1405, 1775, 2698, 2810, 3550, 5339, 6745, 7025, 10678, 13490, 14050, 19951, 26695, 33725, 39902, 53390, 67450, 99755, 133475, 199510, 266950, 379069, 498775, 758138, 997550, 1895345, 3790690, 9476725, 18953450]

約数ペア:

[(1, 18953450), (2, 9476725), (5, 3790690), (10, 1895345), (19, 997550), (25, 758138), (38, 498775), (50, 379069), (71, 266950), (95, 199510), (142, 133475), (190, 99755), (281, 67450), (355, 53390), (475, 39902), (562, 33725), (710, 26695), (950, 19951), (1349, 14050), (1405, 13490), (1775, 10678), (2698, 7025), (2810, 6745), (3550, 5339)]