80955280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144563}}^1$

素因数の和:144583

約数の個数: 40

約数和(自身を含む): 215111232

約数和(自身を除く): 134155952

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144563, 289126, 578252, 722815, 1011941, 1156504, 1445630, 2023882, 2313008, 2891260, 4047764, 5059705, 5782520, 8095528, 10119410, 11565040, 16191056, 20238820, 40477640, 80955280]

約数ペア:

[(1, 80955280), (2, 40477640), (4, 20238820), (5, 16191056), (7, 11565040), (8, 10119410), (10, 8095528), (14, 5782520), (16, 5059705), (20, 4047764), (28, 2891260), (35, 2313008), (40, 2023882), (56, 1445630), (70, 1156504), (80, 1011941), (112, 722815), (140, 578252), (280, 289126), (560, 144563)]