18606980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4583}}^1$

素因数の和:4628

約数の個数: 48

約数和(自身を含む): 46206720

約数和(自身を除く): 27599740

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 4583, 9166, 18332, 22915, 32081, 45830, 64162, 91660, 128324, 132907, 160405, 265814, 320810, 531628, 641620, 664535, 930349, 1329070, 1860698, 2658140, 3721396, 4651745, 9303490, 18606980]

約数ペア:

[(1, 18606980), (2, 9303490), (4, 4651745), (5, 3721396), (7, 2658140), (10, 1860698), (14, 1329070), (20, 930349), (28, 664535), (29, 641620), (35, 531628), (58, 320810), (70, 265814), (116, 160405), (140, 132907), (145, 128324), (203, 91660), (290, 64162), (406, 45830), (580, 32081), (812, 22915), (1015, 18332), (2030, 9166), (4060, 4583)]