1661295440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{2966599}}^1$

素因数の和:2966619

約数の個数: 40

約数和(自身を含む): 4414300800

約数和(自身を除く): 2753005360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 2966599, 5933198, 11866396, 14832995, 20766193, 23732792, 29665990, 41532386, 47465584, 59331980, 83064772, 103830965, 118663960, 166129544, 207661930, 237327920, 332259088, 415323860, 830647720, 1661295440]

約数ペア:

[(1, 1661295440), (2, 830647720), (4, 415323860), (5, 332259088), (7, 237327920), (8, 207661930), (10, 166129544), (14, 118663960), (16, 103830965), (20, 83064772), (28, 59331980), (35, 47465584), (40, 41532386), (56, 29665990), (70, 23732792), (80, 20766193), (112, 14832995), (140, 11866396), (280, 5933198), (560, 2966599)]