15661258288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{20533}}^1$

素因数の和:20766

約数の個数: 80

約数和(自身を含む): 34577613280

約数和(自身を除く): 18916354992

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 193, 208, 247, 304, 386, 494, 772, 988, 1544, 1976, 2509, 3088, 3667, 3952, 5018, 7334, 10036, 14668, 20072, 20533, 29336, 40144, 41066, 47671, 58672, 82132, 95342, 164264, 190684, 266929, 328528, 381368, 390127, 533858, 762736, 780254, 1067716, 1560508, 2135432, 3121016, 3962869, 4270864, 5071651, 6242032, 7925738, 10143302, 15851476, 20286604, 31702952, 40573208, 51517297, 63405904, 75294511, 81146416, 103034594, 150589022, 206069188, 301178044, 412138376, 602356088, 824276752, 978828643, 1204712176, 1957657286, 3915314572, 7830629144, 15661258288]

約数ペア:

[(1, 15661258288), (2, 7830629144), (4, 3915314572), (8, 1957657286), (13, 1204712176), (16, 978828643), (19, 824276752), (26, 602356088), (38, 412138376), (52, 301178044), (76, 206069188), (104, 150589022), (152, 103034594), (193, 81146416), (208, 75294511), (247, 63405904), (304, 51517297), (386, 40573208), (494, 31702952), (772, 20286604), (988, 15851476), (1544, 10143302), (1976, 7925738), (2509, 6242032), (3088, 5071651), (3667, 4270864), (3952, 3962869), (5018, 3121016), (7334, 2135432), (10036, 1560508), (14668, 1067716), (20072, 780254), (20533, 762736), (29336, 533858), (40144, 390127), (41066, 381368), (47671, 328528), (58672, 266929), (82132, 190684), (95342, 164264)]