7967000

素因数分解:

$2^3\times 5^3\times {\mathrm{31}}^1\times {\mathrm{257}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 19319040

約数和(自身を除く): 11352040

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 31, 40, 50, 62, 100, 124, 125, 155, 200, 248, 250, 257, 310, 500, 514, 620, 775, 1000, 1028, 1240, 1285, 1550, 2056, 2570, 3100, 3875, 5140, 6200, 6425, 7750, 7967, 10280, 12850, 15500, 15934, 25700, 31000, 31868, 32125, 39835, 51400, 63736, 64250, 79670, 128500, 159340, 199175, 257000, 318680, 398350, 796700, 995875, 1593400, 1991750, 3983500, 7967000]

約数ペア:

[(1, 7967000), (2, 3983500), (4, 1991750), (5, 1593400), (8, 995875), (10, 796700), (20, 398350), (25, 318680), (31, 257000), (40, 199175), (50, 159340), (62, 128500), (100, 79670), (124, 64250), (125, 63736), (155, 51400), (200, 39835), (248, 32125), (250, 31868), (257, 31000), (310, 25700), (500, 15934), (514, 15500), (620, 12850), (775, 10280), (1000, 7967), (1028, 7750), (1240, 6425), (1285, 6200), (1550, 5140), (2056, 3875), (2570, 3100)]