551000

素因数分解:

$2^3\times 5^3\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:69

約数の個数: 64

約数和(自身を含む): 1404000

約数和(自身を除く): 853000

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 29, 38, 40, 50, 58, 76, 95, 100, 116, 125, 145, 152, 190, 200, 232, 250, 290, 380, 475, 500, 551, 580, 725, 760, 950, 1000, 1102, 1160, 1450, 1900, 2204, 2375, 2755, 2900, 3625, 3800, 4408, 4750, 5510, 5800, 7250, 9500, 11020, 13775, 14500, 19000, 22040, 27550, 29000, 55100, 68875, 110200, 137750, 275500, 551000]

約数ペア:

[(1, 551000), (2, 275500), (4, 137750), (5, 110200), (8, 68875), (10, 55100), (19, 29000), (20, 27550), (25, 22040), (29, 19000), (38, 14500), (40, 13775), (50, 11020), (58, 9500), (76, 7250), (95, 5800), (100, 5510), (116, 4750), (125, 4408), (145, 3800), (152, 3625), (190, 2900), (200, 2755), (232, 2375), (250, 2204), (290, 1900), (380, 1450), (475, 1160), (500, 1102), (551, 1000), (580, 950), (725, 760)]