19094672020

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{829}}^1\times {\mathrm{26783}}^1$

素因数の和:27664

約数の個数: 48

約数和(自身を含む): 41082370560

約数和(自身を除く): 21987698540

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 829, 860, 1658, 3316, 4145, 8290, 16580, 26783, 35647, 53566, 71294, 107132, 133915, 142588, 178235, 267830, 356470, 535660, 712940, 1151669, 2303338, 4606676, 5758345, 11516690, 22203107, 23033380, 44406214, 88812428, 111015535, 222031070, 444062140, 954733601, 1909467202, 3818934404, 4773668005, 9547336010, 19094672020]

約数ペア:

[(1, 19094672020), (2, 9547336010), (4, 4773668005), (5, 3818934404), (10, 1909467202), (20, 954733601), (43, 444062140), (86, 222031070), (172, 111015535), (215, 88812428), (430, 44406214), (829, 23033380), (860, 22203107), (1658, 11516690), (3316, 5758345), (4145, 4606676), (8290, 2303338), (16580, 1151669), (26783, 712940), (35647, 535660), (53566, 356470), (71294, 267830), (107132, 178235), (133915, 142588)]