289026640

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{16649}}^1$

素因数の和:16700

約数の個数: 80

約数和(自身を含む): 792806400

約数和(自身を除く): 503779760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 35, 40, 56, 62, 70, 80, 112, 124, 140, 155, 217, 248, 280, 310, 434, 496, 560, 620, 868, 1085, 1240, 1736, 2170, 2480, 3472, 4340, 8680, 16649, 17360, 33298, 66596, 83245, 116543, 133192, 166490, 233086, 266384, 332980, 466172, 516119, 582715, 665960, 932344, 1032238, 1165430, 1331920, 1864688, 2064476, 2330860, 2580595, 3612833, 4128952, 4661720, 5161190, 7225666, 8257904, 9323440, 10322380, 14451332, 18064165, 20644760, 28902664, 36128330, 41289520, 57805328, 72256660, 144513320, 289026640]

約数ペア:

[(1, 289026640), (2, 144513320), (4, 72256660), (5, 57805328), (7, 41289520), (8, 36128330), (10, 28902664), (14, 20644760), (16, 18064165), (20, 14451332), (28, 10322380), (31, 9323440), (35, 8257904), (40, 7225666), (56, 5161190), (62, 4661720), (70, 4128952), (80, 3612833), (112, 2580595), (124, 2330860), (140, 2064476), (155, 1864688), (217, 1331920), (248, 1165430), (280, 1032238), (310, 932344), (434, 665960), (496, 582715), (560, 516119), (620, 466172), (868, 332980), (1085, 266384), (1240, 233086), (1736, 166490), (2170, 133192), (2480, 116543), (3472, 83245), (4340, 66596), (8680, 33298), (16649, 17360)]