12521380

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{397}}^1$

素因数の和:508

約数の個数: 48

約数和(自身を含む): 28082880

約数和(自身を除く): 15561500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 83, 95, 166, 190, 332, 380, 397, 415, 794, 830, 1577, 1588, 1660, 1985, 3154, 3970, 6308, 7543, 7885, 7940, 15086, 15770, 30172, 31540, 32951, 37715, 65902, 75430, 131804, 150860, 164755, 329510, 626069, 659020, 1252138, 2504276, 3130345, 6260690, 12521380]

約数ペア:

[(1, 12521380), (2, 6260690), (4, 3130345), (5, 2504276), (10, 1252138), (19, 659020), (20, 626069), (38, 329510), (76, 164755), (83, 150860), (95, 131804), (166, 75430), (190, 65902), (332, 37715), (380, 32951), (397, 31540), (415, 30172), (794, 15770), (830, 15086), (1577, 7940), (1588, 7885), (1660, 7543), (1985, 6308), (3154, 3970)]