19412045

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:245

約数の個数: 32

約数和(自身を含む): 26127360

約数和(自身を除く): 6715315

約数列:

[1, 5, 17, 31, 53, 85, 139, 155, 265, 527, 695, 901, 1643, 2363, 2635, 4309, 4505, 7367, 8215, 11815, 21545, 27931, 36835, 73253, 125239, 139655, 228377, 366265, 626195, 1141885, 3882409, 19412045]

約数ペア:

[(1, 19412045), (5, 3882409), (17, 1141885), (31, 626195), (53, 366265), (85, 228377), (139, 139655), (155, 125239), (265, 73253), (527, 36835), (695, 27931), (901, 21545), (1643, 11815), (2363, 8215), (2635, 7367), (4309, 4505)]