28551320

素因数分解:

$2^3\times 5^1\times 7^3\times {\mathrm{2081}}^1$

素因数の和:2113

約数の個数: 64

約数和(自身を含む): 74952000

約数和(自身を除く): 46400680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 343, 392, 490, 686, 980, 1372, 1715, 1960, 2081, 2744, 3430, 4162, 6860, 8324, 10405, 13720, 14567, 16648, 20810, 29134, 41620, 58268, 72835, 83240, 101969, 116536, 145670, 203938, 291340, 407876, 509845, 582680, 713783, 815752, 1019690, 1427566, 2039380, 2855132, 3568915, 4078760, 5710264, 7137830, 14275660, 28551320]

約数ペア:

[(1, 28551320), (2, 14275660), (4, 7137830), (5, 5710264), (7, 4078760), (8, 3568915), (10, 2855132), (14, 2039380), (20, 1427566), (28, 1019690), (35, 815752), (40, 713783), (49, 582680), (56, 509845), (70, 407876), (98, 291340), (140, 203938), (196, 145670), (245, 116536), (280, 101969), (343, 83240), (392, 72835), (490, 58268), (686, 41620), (980, 29134), (1372, 20810), (1715, 16648), (1960, 14567), (2081, 13720), (2744, 10405), (3430, 8324), (4162, 6860)]