20371520

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:172

約数の個数: 112

約数和(自身を含む): 53766720

約数和(自身を除く): 33395200

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 59, 64, 65, 80, 83, 104, 118, 130, 160, 166, 208, 236, 260, 295, 320, 332, 415, 416, 472, 520, 590, 664, 767, 830, 832, 944, 1040, 1079, 1180, 1328, 1534, 1660, 1888, 2080, 2158, 2360, 2656, 3068, 3320, 3776, 3835, 4160, 4316, 4720, 4897, 5312, 5395, 6136, 6640, 7670, 8632, 9440, 9794, 10790, 12272, 13280, 15340, 17264, 18880, 19588, 21580, 24485, 24544, 26560, 30680, 34528, 39176, 43160, 48970, 49088, 61360, 63661, 69056, 78352, 86320, 97940, 122720, 127322, 156704, 172640, 195880, 245440, 254644, 313408, 318305, 345280, 391760, 509288, 636610, 783520, 1018576, 1273220, 1567040, 2037152, 2546440, 4074304, 5092880, 10185760, 20371520]

約数ペア:

[(1, 20371520), (2, 10185760), (4, 5092880), (5, 4074304), (8, 2546440), (10, 2037152), (13, 1567040), (16, 1273220), (20, 1018576), (26, 783520), (32, 636610), (40, 509288), (52, 391760), (59, 345280), (64, 318305), (65, 313408), (80, 254644), (83, 245440), (104, 195880), (118, 172640), (130, 156704), (160, 127322), (166, 122720), (208, 97940), (236, 86320), (260, 78352), (295, 69056), (320, 63661), (332, 61360), (415, 49088), (416, 48970), (472, 43160), (520, 39176), (590, 34528), (664, 30680), (767, 26560), (830, 24544), (832, 24485), (944, 21580), (1040, 19588), (1079, 18880), (1180, 17264), (1328, 15340), (1534, 13280), (1660, 12272), (1888, 10790), (2080, 9794), (2158, 9440), (2360, 8632), (2656, 7670), (3068, 6640), (3320, 6136), (3776, 5395), (3835, 5312), (4160, 4897), (4316, 4720)]