17781240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2087}}^1$

素因数の和:2172

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 36339720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2087, 2130, 2840, 4174, 4260, 6261, 8348, 8520, 10435, 12522, 16696, 20870, 25044, 31305, 41740, 50088, 62610, 83480, 125220, 148177, 250440, 296354, 444531, 592708, 740885, 889062, 1185416, 1481770, 1778124, 2222655, 2963540, 3556248, 4445310, 5927080, 8890620, 17781240]

約数ペア:

[(1, 17781240), (2, 8890620), (3, 5927080), (4, 4445310), (5, 3556248), (6, 2963540), (8, 2222655), (10, 1778124), (12, 1481770), (15, 1185416), (20, 889062), (24, 740885), (30, 592708), (40, 444531), (60, 296354), (71, 250440), (120, 148177), (142, 125220), (213, 83480), (284, 62610), (355, 50088), (426, 41740), (568, 31305), (710, 25044), (852, 20870), (1065, 16696), (1420, 12522), (1704, 10435), (2087, 8520), (2130, 8348), (2840, 6261), (4174, 4260)]