71358920

素因数分解:

$2^3\times 5^1\times {\mathrm{607}}^1\times {\mathrm{2939}}^1$

素因数の和:3557

約数の個数: 32

約数和(自身を含む): 160876800

約数和(自身を除く): 89517880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 607, 1214, 2428, 2939, 3035, 4856, 5878, 6070, 11756, 12140, 14695, 23512, 24280, 29390, 58780, 117560, 1783973, 3567946, 7135892, 8919865, 14271784, 17839730, 35679460, 71358920]

約数ペア:

[(1, 71358920), (2, 35679460), (4, 17839730), (5, 14271784), (8, 8919865), (10, 7135892), (20, 3567946), (40, 1783973), (607, 117560), (1214, 58780), (2428, 29390), (2939, 24280), (3035, 23512), (4856, 14695), (5878, 12140), (6070, 11756)]