19963160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{859}}^1$

素因数の和:960

約数の個数: 64

約数和(自身を含む): 52012800

約数和(自身を除く): 32049640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 83, 140, 166, 280, 332, 415, 581, 664, 830, 859, 1162, 1660, 1718, 2324, 2905, 3320, 3436, 4295, 4648, 5810, 6013, 6872, 8590, 11620, 12026, 17180, 23240, 24052, 30065, 34360, 48104, 60130, 71297, 120260, 142594, 240520, 285188, 356485, 499079, 570376, 712970, 998158, 1425940, 1996316, 2495395, 2851880, 3992632, 4990790, 9981580, 19963160]

約数ペア:

[(1, 19963160), (2, 9981580), (4, 4990790), (5, 3992632), (7, 2851880), (8, 2495395), (10, 1996316), (14, 1425940), (20, 998158), (28, 712970), (35, 570376), (40, 499079), (56, 356485), (70, 285188), (83, 240520), (140, 142594), (166, 120260), (280, 71297), (332, 60130), (415, 48104), (581, 34360), (664, 30065), (830, 24052), (859, 23240), (1162, 17180), (1660, 12026), (1718, 11620), (2324, 8590), (2905, 6872), (3320, 6013), (3436, 5810), (4295, 4648)]