247488980

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1\times {\mathrm{947}}^1$

素因数の和:1208

約数の個数: 48

約数和(自身を含む): 530349120

約数和(自身を除く): 282860140

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 179, 292, 358, 365, 716, 730, 895, 947, 1460, 1790, 1894, 3580, 3788, 4735, 9470, 13067, 18940, 26134, 52268, 65335, 69131, 130670, 138262, 169513, 261340, 276524, 339026, 345655, 678052, 691310, 847565, 1382620, 1695130, 3390260, 12374449, 24748898, 49497796, 61872245, 123744490, 247488980]

約数ペア:

[(1, 247488980), (2, 123744490), (4, 61872245), (5, 49497796), (10, 24748898), (20, 12374449), (73, 3390260), (146, 1695130), (179, 1382620), (292, 847565), (358, 691310), (365, 678052), (716, 345655), (730, 339026), (895, 276524), (947, 261340), (1460, 169513), (1790, 138262), (1894, 130670), (3580, 69131), (3788, 65335), (4735, 52268), (9470, 26134), (13067, 18940)]