1337778580

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{809}}^1\times {\mathrm{929}}^1$

素因数の和:1836

約数の個数: 48

約数和(自身を含む): 2847474000

約数和(自身を除く): 1509695420

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 809, 890, 929, 1618, 1780, 1858, 3236, 3716, 4045, 4645, 8090, 9290, 16180, 18580, 72001, 82681, 144002, 165362, 288004, 330724, 360005, 413405, 720010, 751561, 826810, 1440020, 1503122, 1653620, 3006244, 3757805, 7515610, 15031220, 66888929, 133777858, 267555716, 334444645, 668889290, 1337778580]

約数ペア:

[(1, 1337778580), (2, 668889290), (4, 334444645), (5, 267555716), (10, 133777858), (20, 66888929), (89, 15031220), (178, 7515610), (356, 3757805), (445, 3006244), (809, 1653620), (890, 1503122), (929, 1440020), (1618, 826810), (1780, 751561), (1858, 720010), (3236, 413405), (3716, 360005), (4045, 330724), (4645, 288004), (8090, 165362), (9290, 144002), (16180, 82681), (18580, 72001)]