1639842355

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{311}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 2172381120

約数和(自身を除く): 532538765

約数列:

[1, 5, 17, 41, 85, 89, 205, 289, 311, 445, 697, 1445, 1513, 1555, 3485, 3649, 5287, 7565, 11849, 12751, 18245, 25721, 26435, 27679, 59245, 62033, 63755, 89879, 128605, 138395, 216767, 310165, 449395, 470543, 1054561, 1083835, 1134839, 2352715, 3685039, 5272805, 5674195, 7999231, 18425195, 19292263, 39996155, 96461315, 327968471, 1639842355]

約数ペア:

[(1, 1639842355), (5, 327968471), (17, 96461315), (41, 39996155), (85, 19292263), (89, 18425195), (205, 7999231), (289, 5674195), (311, 5272805), (445, 3685039), (697, 2352715), (1445, 1134839), (1513, 1083835), (1555, 1054561), (3485, 470543), (3649, 449395), (5287, 310165), (7565, 216767), (11849, 138395), (12751, 128605), (18245, 89879), (25721, 63755), (26435, 62033), (27679, 59245)]