423920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{757}}^1$

素因数の和:777

約数の個数: 40

約数和(自身を含む): 1127904

約数和(自身を除く): 703984

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 757, 1514, 3028, 3785, 5299, 6056, 7570, 10598, 12112, 15140, 21196, 26495, 30280, 42392, 52990, 60560, 84784, 105980, 211960, 423920]

約数ペア:

[(1, 423920), (2, 211960), (4, 105980), (5, 84784), (7, 60560), (8, 52990), (10, 42392), (14, 30280), (16, 26495), (20, 21196), (28, 15140), (35, 12112), (40, 10598), (56, 7570), (70, 6056), (80, 5299), (112, 3785), (140, 3028), (280, 1514), (560, 757)]