20160420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2087}}^1$

素因数の和:2129

約数の個数: 96

約数和(自身を含む): 67350528

約数和(自身を除く): 47190108

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 60, 69, 70, 84, 92, 105, 115, 138, 140, 161, 210, 230, 276, 322, 345, 420, 460, 483, 644, 690, 805, 966, 1380, 1610, 1932, 2087, 2415, 3220, 4174, 4830, 6261, 8348, 9660, 10435, 12522, 14609, 20870, 25044, 29218, 31305, 41740, 43827, 48001, 58436, 62610, 73045, 87654, 96002, 125220, 144003, 146090, 175308, 192004, 219135, 240005, 288006, 292180, 336007, 438270, 480010, 576012, 672014, 720015, 876540, 960020, 1008021, 1344028, 1440030, 1680035, 2016042, 2880060, 3360070, 4032084, 5040105, 6720140, 10080210, 20160420]

約数ペア:

[(1, 20160420), (2, 10080210), (3, 6720140), (4, 5040105), (5, 4032084), (6, 3360070), (7, 2880060), (10, 2016042), (12, 1680035), (14, 1440030), (15, 1344028), (20, 1008021), (21, 960020), (23, 876540), (28, 720015), (30, 672014), (35, 576012), (42, 480010), (46, 438270), (60, 336007), (69, 292180), (70, 288006), (84, 240005), (92, 219135), (105, 192004), (115, 175308), (138, 146090), (140, 144003), (161, 125220), (210, 96002), (230, 87654), (276, 73045), (322, 62610), (345, 58436), (420, 48001), (460, 43827), (483, 41740), (644, 31305), (690, 29218), (805, 25044), (966, 20870), (1380, 14609), (1610, 12522), (1932, 10435), (2087, 9660), (2415, 8348), (3220, 6261), (4174, 4830)]