13196920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:448

約数の個数: 64

約数和(自身を含む): 32853600

約数和(自身を除く): 19656680

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 89, 110, 178, 220, 337, 356, 440, 445, 674, 712, 890, 979, 1348, 1685, 1780, 1958, 2696, 3370, 3560, 3707, 3916, 4895, 6740, 7414, 7832, 9790, 13480, 14828, 18535, 19580, 29656, 29993, 37070, 39160, 59986, 74140, 119972, 148280, 149965, 239944, 299930, 329923, 599860, 659846, 1199720, 1319692, 1649615, 2639384, 3299230, 6598460, 13196920]

約数ペア:

[(1, 13196920), (2, 6598460), (4, 3299230), (5, 2639384), (8, 1649615), (10, 1319692), (11, 1199720), (20, 659846), (22, 599860), (40, 329923), (44, 299930), (55, 239944), (88, 149965), (89, 148280), (110, 119972), (178, 74140), (220, 59986), (337, 39160), (356, 37070), (440, 29993), (445, 29656), (674, 19580), (712, 18535), (890, 14828), (979, 13480), (1348, 9790), (1685, 7832), (1780, 7414), (1958, 6740), (2696, 4895), (3370, 3916), (3560, 3707)]