280717500

素因数分解:

$2^2\times 3^1\times 5^4\times 7^1\times {\mathrm{5347}}^1$

素因数の和:5381

約数の個数: 120

約数和(自身を含む): 935600512

約数和(自身を除く): 654883012

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, 125, 140, 150, 175, 210, 250, 300, 350, 375, 420, 500, 525, 625, 700, 750, 875, 1050, 1250, 1500, 1750, 1875, 2100, 2500, 2625, 3500, 3750, 4375, 5250, 5347, 7500, 8750, 10500, 10694, 13125, 16041, 17500, 21388, 26250, 26735, 32082, 37429, 52500, 53470, 64164, 74858, 80205, 106940, 112287, 133675, 149716, 160410, 187145, 224574, 267350, 320820, 374290, 401025, 449148, 534700, 561435, 668375, 748580, 802050, 935725, 1122870, 1336750, 1604100, 1871450, 2005125, 2245740, 2673500, 2807175, 3341875, 3742900, 4010250, 4678625, 5614350, 6683750, 8020500, 9357250, 10025625, 11228700, 13367500, 14035875, 18714500, 20051250, 23393125, 28071750, 40102500, 46786250, 56143500, 70179375, 93572500, 140358750, 280717500]

約数ペア:

[(1, 280717500), (2, 140358750), (3, 93572500), (4, 70179375), (5, 56143500), (6, 46786250), (7, 40102500), (10, 28071750), (12, 23393125), (14, 20051250), (15, 18714500), (20, 14035875), (21, 13367500), (25, 11228700), (28, 10025625), (30, 9357250), (35, 8020500), (42, 6683750), (50, 5614350), (60, 4678625), (70, 4010250), (75, 3742900), (84, 3341875), (100, 2807175), (105, 2673500), (125, 2245740), (140, 2005125), (150, 1871450), (175, 1604100), (210, 1336750), (250, 1122870), (300, 935725), (350, 802050), (375, 748580), (420, 668375), (500, 561435), (525, 534700), (625, 449148), (700, 401025), (750, 374290), (875, 320820), (1050, 267350), (1250, 224574), (1500, 187145), (1750, 160410), (1875, 149716), (2100, 133675), (2500, 112287), (2625, 106940), (3500, 80205), (3750, 74858), (4375, 64164), (5250, 53470), (5347, 52500), (7500, 37429), (8750, 32082), (10500, 26735), (10694, 26250), (13125, 21388), (16041, 17500)]