20032880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:534

約数の個数: 80

約数和(自身を含む): 53996544

約数和(自身を除く): 33963664

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 83, 112, 140, 166, 280, 332, 415, 431, 560, 581, 664, 830, 862, 1162, 1328, 1660, 1724, 2155, 2324, 2905, 3017, 3320, 3448, 4310, 4648, 5810, 6034, 6640, 6896, 8620, 9296, 11620, 12068, 15085, 17240, 23240, 24136, 30170, 34480, 35773, 46480, 48272, 60340, 71546, 120680, 143092, 178865, 241360, 250411, 286184, 357730, 500822, 572368, 715460, 1001644, 1252055, 1430920, 2003288, 2504110, 2861840, 4006576, 5008220, 10016440, 20032880]

約数ペア:

[(1, 20032880), (2, 10016440), (4, 5008220), (5, 4006576), (7, 2861840), (8, 2504110), (10, 2003288), (14, 1430920), (16, 1252055), (20, 1001644), (28, 715460), (35, 572368), (40, 500822), (56, 357730), (70, 286184), (80, 250411), (83, 241360), (112, 178865), (140, 143092), (166, 120680), (280, 71546), (332, 60340), (415, 48272), (431, 46480), (560, 35773), (581, 34480), (664, 30170), (830, 24136), (862, 23240), (1162, 17240), (1328, 15085), (1660, 12068), (1724, 11620), (2155, 9296), (2324, 8620), (2905, 6896), (3017, 6640), (3320, 6034), (3448, 5810), (4310, 4648)]