19868240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2087}}^1$

素因数の和:2124

約数の個数: 80

約数和(自身を含む): 55924992

約数和(自身を除く): 36056752

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 17, 20, 28, 34, 35, 40, 56, 68, 70, 80, 85, 112, 119, 136, 140, 170, 238, 272, 280, 340, 476, 560, 595, 680, 952, 1190, 1360, 1904, 2087, 2380, 4174, 4760, 8348, 9520, 10435, 14609, 16696, 20870, 29218, 33392, 35479, 41740, 58436, 70958, 73045, 83480, 116872, 141916, 146090, 166960, 177395, 233744, 248353, 283832, 292180, 354790, 496706, 567664, 584360, 709580, 993412, 1168720, 1241765, 1419160, 1986824, 2483530, 2838320, 3973648, 4967060, 9934120, 19868240]

約数ペア:

[(1, 19868240), (2, 9934120), (4, 4967060), (5, 3973648), (7, 2838320), (8, 2483530), (10, 1986824), (14, 1419160), (16, 1241765), (17, 1168720), (20, 993412), (28, 709580), (34, 584360), (35, 567664), (40, 496706), (56, 354790), (68, 292180), (70, 283832), (80, 248353), (85, 233744), (112, 177395), (119, 166960), (136, 146090), (140, 141916), (170, 116872), (238, 83480), (272, 73045), (280, 70958), (340, 58436), (476, 41740), (560, 35479), (595, 33392), (680, 29218), (952, 20870), (1190, 16696), (1360, 14609), (1904, 10435), (2087, 9520), (2380, 8348), (4174, 4760)]