15925660

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:510

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 19455140

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 89, 92, 115, 178, 230, 356, 389, 445, 460, 778, 890, 1556, 1780, 1945, 2047, 3890, 4094, 7780, 8188, 8947, 10235, 17894, 20470, 34621, 35788, 40940, 44735, 69242, 89470, 138484, 173105, 178940, 346210, 692420, 796283, 1592566, 3185132, 3981415, 7962830, 15925660]

約数ペア:

[(1, 15925660), (2, 7962830), (4, 3981415), (5, 3185132), (10, 1592566), (20, 796283), (23, 692420), (46, 346210), (89, 178940), (92, 173105), (115, 138484), (178, 89470), (230, 69242), (356, 44735), (389, 40940), (445, 35788), (460, 34621), (778, 20470), (890, 17894), (1556, 10235), (1780, 8947), (1945, 8188), (2047, 7780), (3890, 4094)]