164965880

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{769}}^1$

素因数の和:984

約数の個数: 64

約数和(自身を含む): 385862400

約数和(自身を除く): 220896520

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 173, 248, 310, 346, 620, 692, 769, 865, 1240, 1384, 1538, 1730, 3076, 3460, 3845, 5363, 6152, 6920, 7690, 10726, 15380, 21452, 23839, 26815, 30760, 42904, 47678, 53630, 95356, 107260, 119195, 133037, 190712, 214520, 238390, 266074, 476780, 532148, 665185, 953560, 1064296, 1330370, 2660740, 4124147, 5321480, 8248294, 16496588, 20620735, 32993176, 41241470, 82482940, 164965880]

約数ペア:

[(1, 164965880), (2, 82482940), (4, 41241470), (5, 32993176), (8, 20620735), (10, 16496588), (20, 8248294), (31, 5321480), (40, 4124147), (62, 2660740), (124, 1330370), (155, 1064296), (173, 953560), (248, 665185), (310, 532148), (346, 476780), (620, 266074), (692, 238390), (769, 214520), (865, 190712), (1240, 133037), (1384, 119195), (1538, 107260), (1730, 95356), (3076, 53630), (3460, 47678), (3845, 42904), (5363, 30760), (6152, 26815), (6920, 23839), (7690, 21452), (10726, 15380)]