8618000

素因数分解:

$2^4\times 5^3\times {\mathrm{31}}^1\times {\mathrm{139}}^1$

素因数の和:193

約数の個数: 80

約数和(自身を含む): 21665280

約数和(自身を除く): 13047280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 125, 139, 155, 200, 248, 250, 278, 310, 400, 496, 500, 556, 620, 695, 775, 1000, 1112, 1240, 1390, 1550, 2000, 2224, 2480, 2780, 3100, 3475, 3875, 4309, 5560, 6200, 6950, 7750, 8618, 11120, 12400, 13900, 15500, 17236, 17375, 21545, 27800, 31000, 34472, 34750, 43090, 55600, 62000, 68944, 69500, 86180, 107725, 139000, 172360, 215450, 278000, 344720, 430900, 538625, 861800, 1077250, 1723600, 2154500, 4309000, 8618000]

約数ペア:

[(1, 8618000), (2, 4309000), (4, 2154500), (5, 1723600), (8, 1077250), (10, 861800), (16, 538625), (20, 430900), (25, 344720), (31, 278000), (40, 215450), (50, 172360), (62, 139000), (80, 107725), (100, 86180), (124, 69500), (125, 68944), (139, 62000), (155, 55600), (200, 43090), (248, 34750), (250, 34472), (278, 31000), (310, 27800), (400, 21545), (496, 17375), (500, 17236), (556, 15500), (620, 13900), (695, 12400), (775, 11120), (1000, 8618), (1112, 7750), (1240, 6950), (1390, 6200), (1550, 5560), (2000, 4309), (2224, 3875), (2480, 3475), (2780, 3100)]