18943210

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1019}}^1$

素因数の和:1063

約数の個数: 48

約数和(自身を含む): 40318560

約数和(自身を除く): 21375350

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 169, 286, 338, 715, 845, 1019, 1430, 1690, 1859, 2038, 3718, 5095, 9295, 10190, 11209, 13247, 18590, 22418, 26494, 56045, 66235, 112090, 132470, 145717, 172211, 291434, 344422, 728585, 861055, 1457170, 1722110, 1894321, 3788642, 9471605, 18943210]

約数ペア:

[(1, 18943210), (2, 9471605), (5, 3788642), (10, 1894321), (11, 1722110), (13, 1457170), (22, 861055), (26, 728585), (55, 344422), (65, 291434), (110, 172211), (130, 145717), (143, 132470), (169, 112090), (286, 66235), (338, 56045), (715, 26494), (845, 22418), (1019, 18590), (1430, 13247), (1690, 11209), (1859, 10190), (2038, 9295), (3718, 5095)]