20881990832

素因数分解:

$2^4\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{228049}}^1$

素因数の和:228213

約数の個数: 40

約数和(自身を含む): 41568954000

約数和(自身を除く): 20686963168

約数列:

[1, 2, 4, 8, 16, 59, 97, 118, 194, 236, 388, 472, 776, 944, 1552, 5723, 11446, 22892, 45784, 91568, 228049, 456098, 912196, 1824392, 3648784, 13454891, 22120753, 26909782, 44241506, 53819564, 88483012, 107639128, 176966024, 215278256, 353932048, 1305124427, 2610248854, 5220497708, 10440995416, 20881990832]

約数ペア:

[(1, 20881990832), (2, 10440995416), (4, 5220497708), (8, 2610248854), (16, 1305124427), (59, 353932048), (97, 215278256), (118, 176966024), (194, 107639128), (236, 88483012), (388, 53819564), (472, 44241506), (776, 26909782), (944, 22120753), (1552, 13454891), (5723, 3648784), (11446, 1824392), (22892, 912196), (45784, 456098), (91568, 228049)]