204400360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{164839}}^1$

素因数の和:164881

約数の個数: 32

約数和(自身を含む): 474739200

約数和(自身を除く): 270338840

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 164839, 329678, 659356, 824195, 1318712, 1648390, 3296780, 5110009, 6593560, 10220018, 20440036, 25550045, 40880072, 51100090, 102200180, 204400360]

約数ペア:

[(1, 204400360), (2, 102200180), (4, 51100090), (5, 40880072), (8, 25550045), (10, 20440036), (20, 10220018), (31, 6593560), (40, 5110009), (62, 3296780), (124, 1648390), (155, 1318712), (248, 824195), (310, 659356), (620, 329678), (1240, 164839)]