20006656

素因数分解:

$2^8\times {\mathrm{31}}^1\times {\mathrm{2521}}^1$

素因数の和:2568

約数の個数: 36

約数和(自身を含む): 41239744

約数和(自身を除く): 21233088

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 992, 1984, 2521, 3968, 5042, 7936, 10084, 20168, 40336, 78151, 80672, 156302, 161344, 312604, 322688, 625208, 645376, 1250416, 2500832, 5001664, 10003328, 20006656]

約数ペア:

[(1, 20006656), (2, 10003328), (4, 5001664), (8, 2500832), (16, 1250416), (31, 645376), (32, 625208), (62, 322688), (64, 312604), (124, 161344), (128, 156302), (248, 80672), (256, 78151), (496, 40336), (992, 20168), (1984, 10084), (2521, 7936), (3968, 5042)]