18672230

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:165

約数の個数: 48

約数和(自身を含む): 36462960

約数和(自身を除く): 17790730

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 67, 134, 145, 155, 290, 310, 335, 670, 899, 961, 1798, 1922, 1943, 2077, 3886, 4154, 4495, 4805, 8990, 9610, 9715, 10385, 19430, 20770, 27869, 55738, 60233, 64387, 120466, 128774, 139345, 278690, 301165, 321935, 602330, 643870, 1867223, 3734446, 9336115, 18672230]

約数ペア:

[(1, 18672230), (2, 9336115), (5, 3734446), (10, 1867223), (29, 643870), (31, 602330), (58, 321935), (62, 301165), (67, 278690), (134, 139345), (145, 128774), (155, 120466), (290, 64387), (310, 60233), (335, 55738), (670, 27869), (899, 20770), (961, 19430), (1798, 10385), (1922, 9715), (1943, 9610), (2077, 8990), (3886, 4805), (4154, 4495)]