248245720

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1\times {\mathrm{439}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 570873600

約数和(自身を除く): 322627880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 211, 268, 335, 422, 439, 536, 670, 844, 878, 1055, 1340, 1688, 1756, 2110, 2195, 2680, 3512, 4220, 4390, 8440, 8780, 14137, 17560, 28274, 29413, 56548, 58826, 70685, 92629, 113096, 117652, 141370, 147065, 185258, 235304, 282740, 294130, 370516, 463145, 565480, 588260, 741032, 926290, 1176520, 1852580, 3705160, 6206143, 12412286, 24824572, 31030715, 49649144, 62061430, 124122860, 248245720]

約数ペア:

[(1, 248245720), (2, 124122860), (4, 62061430), (5, 49649144), (8, 31030715), (10, 24824572), (20, 12412286), (40, 6206143), (67, 3705160), (134, 1852580), (211, 1176520), (268, 926290), (335, 741032), (422, 588260), (439, 565480), (536, 463145), (670, 370516), (844, 294130), (878, 282740), (1055, 235304), (1340, 185258), (1688, 147065), (1756, 141370), (2110, 117652), (2195, 113096), (2680, 92629), (3512, 70685), (4220, 58826), (4390, 56548), (8440, 29413), (8780, 28274), (14137, 17560)]