128761620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{165079}}^1$

素因数の和:165104

約数の個数: 48

約数和(自身を含む): 388268160

約数和(自身を除く): 259506540

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 165079, 330158, 495237, 660316, 825395, 990474, 1650790, 1980948, 2146027, 2476185, 3301580, 4292054, 4952370, 6438081, 8584108, 9904740, 10730135, 12876162, 21460270, 25752324, 32190405, 42920540, 64380810, 128761620]

約数ペア:

[(1, 128761620), (2, 64380810), (3, 42920540), (4, 32190405), (5, 25752324), (6, 21460270), (10, 12876162), (12, 10730135), (13, 9904740), (15, 8584108), (20, 6438081), (26, 4952370), (30, 4292054), (39, 3301580), (52, 2476185), (60, 2146027), (65, 1980948), (78, 1650790), (130, 990474), (156, 825395), (195, 660316), (260, 495237), (390, 330158), (780, 165079)]