1831480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1$

素因数の和:260

約数の個数: 64

約数和(自身を含む): 4884480

約数和(自身を除く): 3053000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 211, 217, 248, 280, 310, 422, 434, 620, 844, 868, 1055, 1085, 1240, 1477, 1688, 1736, 2110, 2170, 2954, 4220, 4340, 5908, 6541, 7385, 8440, 8680, 11816, 13082, 14770, 26164, 29540, 32705, 45787, 52328, 59080, 65410, 91574, 130820, 183148, 228935, 261640, 366296, 457870, 915740, 1831480]

約数ペア:

[(1, 1831480), (2, 915740), (4, 457870), (5, 366296), (7, 261640), (8, 228935), (10, 183148), (14, 130820), (20, 91574), (28, 65410), (31, 59080), (35, 52328), (40, 45787), (56, 32705), (62, 29540), (70, 26164), (124, 14770), (140, 13082), (155, 11816), (211, 8680), (217, 8440), (248, 7385), (280, 6541), (310, 5908), (422, 4340), (434, 4220), (620, 2954), (844, 2170), (868, 2110), (1055, 1736), (1085, 1688), (1240, 1477)]