207320

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 479520

約数和(自身を除く): 272200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 73, 142, 146, 284, 292, 355, 365, 568, 584, 710, 730, 1420, 1460, 2840, 2920, 5183, 10366, 20732, 25915, 41464, 51830, 103660, 207320]

約数ペア:

[(1, 207320), (2, 103660), (4, 51830), (5, 41464), (8, 25915), (10, 20732), (20, 10366), (40, 5183), (71, 2920), (73, 2840), (142, 1460), (146, 1420), (284, 730), (292, 710), (355, 584), (365, 568)]