8479000

素因数分解:

$2^3\times 5^3\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:221

約数の個数: 64

約数和(自身を含む): 20311200

約数和(自身を除く): 11832200

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 61, 100, 122, 125, 139, 200, 244, 250, 278, 305, 488, 500, 556, 610, 695, 1000, 1112, 1220, 1390, 1525, 2440, 2780, 3050, 3475, 5560, 6100, 6950, 7625, 8479, 12200, 13900, 15250, 16958, 17375, 27800, 30500, 33916, 34750, 42395, 61000, 67832, 69500, 84790, 139000, 169580, 211975, 339160, 423950, 847900, 1059875, 1695800, 2119750, 4239500, 8479000]

約数ペア:

[(1, 8479000), (2, 4239500), (4, 2119750), (5, 1695800), (8, 1059875), (10, 847900), (20, 423950), (25, 339160), (40, 211975), (50, 169580), (61, 139000), (100, 84790), (122, 69500), (125, 67832), (139, 61000), (200, 42395), (244, 34750), (250, 33916), (278, 30500), (305, 27800), (488, 17375), (500, 16958), (556, 15250), (610, 13900), (695, 12200), (1000, 8479), (1112, 7625), (1220, 6950), (1390, 6100), (1525, 5560), (2440, 3475), (2780, 3050)]