215193320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{173543}}^1$

素因数の和:173585

約数の個数: 32

約数和(自身を含む): 499806720

約数和(自身を除く): 284613400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 173543, 347086, 694172, 867715, 1388344, 1735430, 3470860, 5379833, 6941720, 10759666, 21519332, 26899165, 43038664, 53798330, 107596660, 215193320]

約数ペア:

[(1, 215193320), (2, 107596660), (4, 53798330), (5, 43038664), (8, 26899165), (10, 21519332), (20, 10759666), (31, 6941720), (40, 5379833), (62, 3470860), (124, 1735430), (155, 1388344), (248, 867715), (310, 694172), (620, 347086), (1240, 173543)]