285718940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{35449}}^1$

素因数の和:35502

約数の個数: 48

約数和(自身を含む): 667027200

約数和(自身を除く): 381308260

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 35449, 70898, 141796, 177245, 354490, 460837, 708980, 921674, 1098919, 1843348, 2197838, 2304185, 4395676, 4608370, 5494595, 9216740, 10989190, 14285947, 21978380, 28571894, 57143788, 71429735, 142859470, 285718940]

約数ペア:

[(1, 285718940), (2, 142859470), (4, 71429735), (5, 57143788), (10, 28571894), (13, 21978380), (20, 14285947), (26, 10989190), (31, 9216740), (52, 5494595), (62, 4608370), (65, 4395676), (124, 2304185), (130, 2197838), (155, 1843348), (260, 1098919), (310, 921674), (403, 708980), (620, 460837), (806, 354490), (1612, 177245), (2015, 141796), (4030, 70898), (8060, 35449)]