18291520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{4397}}^1$

素因数の和:4427

約数の個数: 56

約数和(自身を含む): 46917864

約数和(自身を除く): 28626344

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 130, 160, 208, 260, 320, 416, 520, 832, 1040, 2080, 4160, 4397, 8794, 17588, 21985, 35176, 43970, 57161, 70352, 87940, 114322, 140704, 175880, 228644, 281408, 285805, 351760, 457288, 571610, 703520, 914576, 1143220, 1407040, 1829152, 2286440, 3658304, 4572880, 9145760, 18291520]

約数ペア:

[(1, 18291520), (2, 9145760), (4, 4572880), (5, 3658304), (8, 2286440), (10, 1829152), (13, 1407040), (16, 1143220), (20, 914576), (26, 703520), (32, 571610), (40, 457288), (52, 351760), (64, 285805), (65, 281408), (80, 228644), (104, 175880), (130, 140704), (160, 114322), (208, 87940), (260, 70352), (320, 57161), (416, 43970), (520, 35176), (832, 21985), (1040, 17588), (2080, 8794), (4160, 4397)]