78507320

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{12041}}^1$

素因数の和:12215

約数の個数: 32

約数和(自身を含む): 177739920

約数和(自身を除く): 99232600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 815, 1304, 1630, 3260, 6520, 12041, 24082, 48164, 60205, 96328, 120410, 240820, 481640, 1962683, 3925366, 7850732, 9813415, 15701464, 19626830, 39253660, 78507320]

約数ペア:

[(1, 78507320), (2, 39253660), (4, 19626830), (5, 15701464), (8, 9813415), (10, 7850732), (20, 3925366), (40, 1962683), (163, 481640), (326, 240820), (652, 120410), (815, 96328), (1304, 60205), (1630, 48164), (3260, 24082), (6520, 12041)]