78672840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2551}}^1$

素因数の和:2822

約数の個数: 64

約数和(自身を含む): 237029760

約数和(自身を除く): 158356920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 257, 514, 771, 1028, 1285, 1542, 2056, 2551, 2570, 3084, 3855, 5102, 5140, 6168, 7653, 7710, 10204, 10280, 12755, 15306, 15420, 20408, 25510, 30612, 30840, 38265, 51020, 61224, 76530, 102040, 153060, 306120, 655607, 1311214, 1966821, 2622428, 3278035, 3933642, 5244856, 6556070, 7867284, 9834105, 13112140, 15734568, 19668210, 26224280, 39336420, 78672840]

約数ペア:

[(1, 78672840), (2, 39336420), (3, 26224280), (4, 19668210), (5, 15734568), (6, 13112140), (8, 9834105), (10, 7867284), (12, 6556070), (15, 5244856), (20, 3933642), (24, 3278035), (30, 2622428), (40, 1966821), (60, 1311214), (120, 655607), (257, 306120), (514, 153060), (771, 102040), (1028, 76530), (1285, 61224), (1542, 51020), (2056, 38265), (2551, 30840), (2570, 30612), (3084, 25510), (3855, 20408), (5102, 15420), (5140, 15306), (6168, 12755), (7653, 10280), (7710, 10204)]