18609455

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:215

約数の個数: 32

約数和(自身を含む): 24883200

約数和(自身を除く): 6273745

約数列:

[1, 5, 19, 31, 71, 89, 95, 155, 355, 445, 589, 1349, 1691, 2201, 2759, 2945, 6319, 6745, 8455, 11005, 13795, 31595, 41819, 52421, 120061, 195889, 209095, 262105, 600305, 979445, 3721891, 18609455]

約数ペア:

[(1, 18609455), (5, 3721891), (19, 979445), (31, 600305), (71, 262105), (89, 209095), (95, 195889), (155, 120061), (355, 52421), (445, 41819), (589, 31595), (1349, 13795), (1691, 11005), (2201, 8455), (2759, 6745), (2945, 6319)]