18456490

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{67}}^1\times {\mathrm{163}}^1$

素因数の和:263

約数の個数: 48

約数和(自身を含む): 36734688

約数和(自身を除く): 18278198

約数列:

[1, 2, 5, 10, 13, 26, 65, 67, 130, 134, 163, 169, 326, 335, 338, 670, 815, 845, 871, 1630, 1690, 1742, 2119, 4238, 4355, 8710, 10595, 10921, 11323, 21190, 21842, 22646, 27547, 54605, 55094, 56615, 109210, 113230, 137735, 141973, 275470, 283946, 709865, 1419730, 1845649, 3691298, 9228245, 18456490]

約数ペア:

[(1, 18456490), (2, 9228245), (5, 3691298), (10, 1845649), (13, 1419730), (26, 709865), (65, 283946), (67, 275470), (130, 141973), (134, 137735), (163, 113230), (169, 109210), (326, 56615), (335, 55094), (338, 54605), (670, 27547), (815, 22646), (845, 21842), (871, 21190), (1630, 11323), (1690, 10921), (1742, 10595), (2119, 8710), (4238, 4355)]