20614160

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{281}}^1$

素因数の和:432

約数の個数: 80

約数和(自身を含む): 55389312

約数和(自身を除く): 34775152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 131, 140, 262, 280, 281, 524, 560, 562, 655, 917, 1048, 1124, 1310, 1405, 1834, 1967, 2096, 2248, 2620, 2810, 3668, 3934, 4496, 4585, 5240, 5620, 7336, 7868, 9170, 9835, 10480, 11240, 14672, 15736, 18340, 19670, 22480, 31472, 36680, 36811, 39340, 73360, 73622, 78680, 147244, 157360, 184055, 257677, 294488, 368110, 515354, 588976, 736220, 1030708, 1288385, 1472440, 2061416, 2576770, 2944880, 4122832, 5153540, 10307080, 20614160]

約数ペア:

[(1, 20614160), (2, 10307080), (4, 5153540), (5, 4122832), (7, 2944880), (8, 2576770), (10, 2061416), (14, 1472440), (16, 1288385), (20, 1030708), (28, 736220), (35, 588976), (40, 515354), (56, 368110), (70, 294488), (80, 257677), (112, 184055), (131, 157360), (140, 147244), (262, 78680), (280, 73622), (281, 73360), (524, 39340), (560, 36811), (562, 36680), (655, 31472), (917, 22480), (1048, 19670), (1124, 18340), (1310, 15736), (1405, 14672), (1834, 11240), (1967, 10480), (2096, 9835), (2248, 9170), (2620, 7868), (2810, 7336), (3668, 5620), (3934, 5240), (4496, 4585)]