257415900

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{122579}}^1$

素因数の和:122603

約数の個数: 72

約数和(自身を含む): 851195520

約数和(自身を除く): 593779620

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 100, 105, 140, 150, 175, 210, 300, 350, 420, 525, 700, 1050, 2100, 122579, 245158, 367737, 490316, 612895, 735474, 858053, 1225790, 1470948, 1716106, 1838685, 2451580, 2574159, 3064475, 3432212, 3677370, 4290265, 5148318, 6128950, 7354740, 8580530, 9193425, 10296636, 12257900, 12870795, 17161060, 18386850, 21451325, 25741590, 36773700, 42902650, 51483180, 64353975, 85805300, 128707950, 257415900]

約数ペア:

[(1, 257415900), (2, 128707950), (3, 85805300), (4, 64353975), (5, 51483180), (6, 42902650), (7, 36773700), (10, 25741590), (12, 21451325), (14, 18386850), (15, 17161060), (20, 12870795), (21, 12257900), (25, 10296636), (28, 9193425), (30, 8580530), (35, 7354740), (42, 6128950), (50, 5148318), (60, 4290265), (70, 3677370), (75, 3432212), (84, 3064475), (100, 2574159), (105, 2451580), (140, 1838685), (150, 1716106), (175, 1470948), (210, 1225790), (300, 858053), (350, 735474), (420, 612895), (525, 490316), (700, 367737), (1050, 245158), (2100, 122579)]