68140240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{271}}^1\times {\mathrm{449}}^1$

素因数の和:740

約数の個数: 80

約数和(自身を含む): 182131200

約数和(自身を除く): 113990960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 271, 280, 449, 542, 560, 898, 1084, 1355, 1796, 1897, 2168, 2245, 2710, 3143, 3592, 3794, 4336, 4490, 5420, 6286, 7184, 7588, 8980, 9485, 10840, 12572, 15176, 15715, 17960, 18970, 21680, 25144, 30352, 31430, 35920, 37940, 50288, 62860, 75880, 121679, 125720, 151760, 243358, 251440, 486716, 608395, 851753, 973432, 1216790, 1703506, 1946864, 2433580, 3407012, 4258765, 4867160, 6814024, 8517530, 9734320, 13628048, 17035060, 34070120, 68140240]

約数ペア:

[(1, 68140240), (2, 34070120), (4, 17035060), (5, 13628048), (7, 9734320), (8, 8517530), (10, 6814024), (14, 4867160), (16, 4258765), (20, 3407012), (28, 2433580), (35, 1946864), (40, 1703506), (56, 1216790), (70, 973432), (80, 851753), (112, 608395), (140, 486716), (271, 251440), (280, 243358), (449, 151760), (542, 125720), (560, 121679), (898, 75880), (1084, 62860), (1355, 50288), (1796, 37940), (1897, 35920), (2168, 31430), (2245, 30352), (2710, 25144), (3143, 21680), (3592, 18970), (3794, 17960), (4336, 15715), (4490, 15176), (5420, 12572), (6286, 10840), (7184, 9485), (7588, 8980)]