19726070

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{409}}^1$

素因数の和:489

約数の個数: 64

約数和(自身を含む): 44634240

約数和(自身を除く): 24908170

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 53, 65, 70, 91, 106, 130, 182, 265, 371, 409, 455, 530, 689, 742, 818, 910, 1378, 1855, 2045, 2863, 3445, 3710, 4090, 4823, 5317, 5726, 6890, 9646, 10634, 14315, 21677, 24115, 26585, 28630, 37219, 43354, 48230, 53170, 74438, 108385, 151739, 186095, 216770, 281801, 303478, 372190, 563602, 758695, 1409005, 1517390, 1972607, 2818010, 3945214, 9863035, 19726070]

約数ペア:

[(1, 19726070), (2, 9863035), (5, 3945214), (7, 2818010), (10, 1972607), (13, 1517390), (14, 1409005), (26, 758695), (35, 563602), (53, 372190), (65, 303478), (70, 281801), (91, 216770), (106, 186095), (130, 151739), (182, 108385), (265, 74438), (371, 53170), (409, 48230), (455, 43354), (530, 37219), (689, 28630), (742, 26585), (818, 24115), (910, 21677), (1378, 14315), (1855, 10634), (2045, 9646), (2863, 6890), (3445, 5726), (3710, 5317), (4090, 4823)]