19591660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1$

素因数の和:191

約数の個数: 96

約数和(自身を含む): 48787200

約数和(自身を除く): 29195540

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 43, 44, 55, 76, 86, 95, 109, 110, 172, 190, 209, 215, 218, 220, 380, 418, 430, 436, 473, 545, 817, 836, 860, 946, 1045, 1090, 1199, 1634, 1892, 2071, 2090, 2180, 2365, 2398, 3268, 4085, 4142, 4180, 4687, 4730, 4796, 5995, 8170, 8284, 8987, 9374, 9460, 10355, 11990, 16340, 17974, 18748, 20710, 22781, 23435, 23980, 35948, 41420, 44935, 45562, 46870, 51557, 89053, 89870, 91124, 93740, 103114, 113905, 178106, 179740, 206228, 227810, 257785, 356212, 445265, 455620, 515570, 890530, 979583, 1031140, 1781060, 1959166, 3918332, 4897915, 9795830, 19591660]

約数ペア:

[(1, 19591660), (2, 9795830), (4, 4897915), (5, 3918332), (10, 1959166), (11, 1781060), (19, 1031140), (20, 979583), (22, 890530), (38, 515570), (43, 455620), (44, 445265), (55, 356212), (76, 257785), (86, 227810), (95, 206228), (109, 179740), (110, 178106), (172, 113905), (190, 103114), (209, 93740), (215, 91124), (218, 89870), (220, 89053), (380, 51557), (418, 46870), (430, 45562), (436, 44935), (473, 41420), (545, 35948), (817, 23980), (836, 23435), (860, 22781), (946, 20710), (1045, 18748), (1090, 17974), (1199, 16340), (1634, 11990), (1892, 10355), (2071, 9460), (2090, 9374), (2180, 8987), (2365, 8284), (2398, 8170), (3268, 5995), (4085, 4796), (4142, 4730), (4180, 4687)]