15402040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{12421}}^1$

素因数の和:12463

約数の個数: 32

約数和(自身を含む): 35775360

約数和(自身を除く): 20373320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 12421, 24842, 49684, 62105, 99368, 124210, 248420, 385051, 496840, 770102, 1540204, 1925255, 3080408, 3850510, 7701020, 15402040]

約数ペア:

[(1, 15402040), (2, 7701020), (4, 3850510), (5, 3080408), (8, 1925255), (10, 1540204), (20, 770102), (31, 496840), (40, 385051), (62, 248420), (124, 124210), (155, 99368), (248, 62105), (310, 49684), (620, 24842), (1240, 12421)]