20786520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{2087}}^1$

素因数の和:2184

約数の個数: 64

約数和(自身を含む): 63141120

約数和(自身を除く): 42354600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 83, 120, 166, 249, 332, 415, 498, 664, 830, 996, 1245, 1660, 1992, 2087, 2490, 3320, 4174, 4980, 6261, 8348, 9960, 10435, 12522, 16696, 20870, 25044, 31305, 41740, 50088, 62610, 83480, 125220, 173221, 250440, 346442, 519663, 692884, 866105, 1039326, 1385768, 1732210, 2078652, 2598315, 3464420, 4157304, 5196630, 6928840, 10393260, 20786520]

約数ペア:

[(1, 20786520), (2, 10393260), (3, 6928840), (4, 5196630), (5, 4157304), (6, 3464420), (8, 2598315), (10, 2078652), (12, 1732210), (15, 1385768), (20, 1039326), (24, 866105), (30, 692884), (40, 519663), (60, 346442), (83, 250440), (120, 173221), (166, 125220), (249, 83480), (332, 62610), (415, 50088), (498, 41740), (664, 31305), (830, 25044), (996, 20870), (1245, 16696), (1660, 12522), (1992, 10435), (2087, 9960), (2490, 8348), (3320, 6261), (4174, 4980)]