26668540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 57788640

約数和(自身を除く): 31120100

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 139, 181, 212, 265, 278, 362, 530, 556, 695, 724, 905, 1060, 1390, 1810, 2780, 3620, 7367, 9593, 14734, 19186, 25159, 29468, 36835, 38372, 47965, 50318, 73670, 95930, 100636, 125795, 147340, 191860, 251590, 503180, 1333427, 2666854, 5333708, 6667135, 13334270, 26668540]

約数ペア:

[(1, 26668540), (2, 13334270), (4, 6667135), (5, 5333708), (10, 2666854), (20, 1333427), (53, 503180), (106, 251590), (139, 191860), (181, 147340), (212, 125795), (265, 100636), (278, 95930), (362, 73670), (530, 50318), (556, 47965), (695, 38372), (724, 36835), (905, 29468), (1060, 25159), (1390, 19186), (1810, 14734), (2780, 9593), (3620, 7367)]