18502520

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{7583}}^1$

素因数の和:7655

約数の個数: 32

約数和(自身を含む): 42318720

約数和(自身を除く): 23816200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 7583, 15166, 30332, 37915, 60664, 75830, 151660, 303320, 462563, 925126, 1850252, 2312815, 3700504, 4625630, 9251260, 18502520]

約数ペア:

[(1, 18502520), (2, 9251260), (4, 4625630), (5, 3700504), (8, 2312815), (10, 1850252), (20, 925126), (40, 462563), (61, 303320), (122, 151660), (244, 75830), (305, 60664), (488, 37915), (610, 30332), (1220, 15166), (2440, 7583)]