1320221660

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{239}}^1\times {\mathrm{1543}}^1$

素因数の和:1970

約数の個数: 48

約数和(自身を含む): 2801433600

約数和(自身を除く): 1481211940

約数列:

[1, 2, 4, 5, 10, 20, 179, 239, 358, 478, 716, 895, 956, 1195, 1543, 1790, 2390, 3086, 3580, 4780, 6172, 7715, 15430, 30860, 42781, 85562, 171124, 213905, 276197, 368777, 427810, 552394, 737554, 855620, 1104788, 1380985, 1475108, 1843885, 2761970, 3687770, 5523940, 7375540, 66011083, 132022166, 264044332, 330055415, 660110830, 1320221660]

約数ペア:

[(1, 1320221660), (2, 660110830), (4, 330055415), (5, 264044332), (10, 132022166), (20, 66011083), (179, 7375540), (239, 5523940), (358, 3687770), (478, 2761970), (716, 1843885), (895, 1475108), (956, 1380985), (1195, 1104788), (1543, 855620), (1790, 737554), (2390, 552394), (3086, 427810), (3580, 368777), (4780, 276197), (6172, 213905), (7715, 171124), (15430, 85562), (30860, 42781)]