5287720

素因数分解:

$2^3\times 5^1\times {\mathrm{163}}^1\times {\mathrm{811}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 11985120

約数和(自身を除く): 6697400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 163, 326, 652, 811, 815, 1304, 1622, 1630, 3244, 3260, 4055, 6488, 6520, 8110, 16220, 32440, 132193, 264386, 528772, 660965, 1057544, 1321930, 2643860, 5287720]

約数ペア:

[(1, 5287720), (2, 2643860), (4, 1321930), (5, 1057544), (8, 660965), (10, 528772), (20, 264386), (40, 132193), (163, 32440), (326, 16220), (652, 8110), (811, 6520), (815, 6488), (1304, 4055), (1622, 3260), (1630, 3244)]