18650528

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:549

約数の個数: 48

約数和(自身を含む): 40007520

約数和(自身を除く): 21356992

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 107, 208, 214, 416, 419, 428, 838, 856, 1391, 1676, 1712, 2782, 3352, 3424, 5447, 5564, 6704, 10894, 11128, 13408, 21788, 22256, 43576, 44512, 44833, 87152, 89666, 174304, 179332, 358664, 582829, 717328, 1165658, 1434656, 2331316, 4662632, 9325264, 18650528]

約数ペア:

[(1, 18650528), (2, 9325264), (4, 4662632), (8, 2331316), (13, 1434656), (16, 1165658), (26, 717328), (32, 582829), (52, 358664), (104, 179332), (107, 174304), (208, 89666), (214, 87152), (416, 44833), (419, 44512), (428, 43576), (838, 22256), (856, 21788), (1391, 13408), (1676, 11128), (1712, 10894), (2782, 6704), (3352, 5564), (3424, 5447)]