18196490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1$

素因数の和:231

約数の個数: 64

約数和(自身を含む): 38102400

約数和(自身を除く): 19905910

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 53, 65, 95, 106, 130, 139, 190, 247, 265, 278, 494, 530, 689, 695, 1007, 1235, 1378, 1390, 1807, 2014, 2470, 2641, 3445, 3614, 5035, 5282, 6890, 7367, 9035, 10070, 13091, 13205, 14734, 18070, 26182, 26410, 34333, 36835, 65455, 68666, 73670, 95771, 130910, 139973, 171665, 191542, 279946, 343330, 478855, 699865, 957710, 1399730, 1819649, 3639298, 9098245, 18196490]

約数ペア:

[(1, 18196490), (2, 9098245), (5, 3639298), (10, 1819649), (13, 1399730), (19, 957710), (26, 699865), (38, 478855), (53, 343330), (65, 279946), (95, 191542), (106, 171665), (130, 139973), (139, 130910), (190, 95771), (247, 73670), (265, 68666), (278, 65455), (494, 36835), (530, 34333), (689, 26410), (695, 26182), (1007, 18070), (1235, 14734), (1378, 13205), (1390, 13091), (1807, 10070), (2014, 9035), (2470, 7367), (2641, 6890), (3445, 5282), (3614, 5035)]