31055180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3853}}^1$

素因数の和:3906

約数の個数: 48

約数和(自身を含む): 72516864

約数和(自身を除く): 41461684

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, 3853, 4030, 7706, 8060, 15412, 19265, 38530, 50089, 77060, 100178, 119443, 200356, 238886, 250445, 477772, 500890, 597215, 1001780, 1194430, 1552759, 2388860, 3105518, 6211036, 7763795, 15527590, 31055180]

約数ペア:

[(1, 31055180), (2, 15527590), (4, 7763795), (5, 6211036), (10, 3105518), (13, 2388860), (20, 1552759), (26, 1194430), (31, 1001780), (52, 597215), (62, 500890), (65, 477772), (124, 250445), (130, 238886), (155, 200356), (260, 119443), (310, 100178), (403, 77060), (620, 50089), (806, 38530), (1612, 19265), (2015, 15412), (3853, 8060), (4030, 7706)]