20091750

素因数分解:

$2^1\times 3^1\times 5^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 128

約数和(自身を含む): 59304960

約数和(自身を除く): 39213210

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 43, 50, 70, 75, 86, 89, 105, 125, 129, 150, 175, 178, 210, 215, 250, 258, 267, 301, 350, 375, 430, 445, 525, 534, 602, 623, 645, 750, 875, 890, 903, 1050, 1075, 1246, 1290, 1335, 1505, 1750, 1806, 1869, 2150, 2225, 2625, 2670, 3010, 3115, 3225, 3738, 3827, 4450, 4515, 5250, 5375, 6230, 6450, 6675, 7525, 7654, 9030, 9345, 10750, 11125, 11481, 13350, 15050, 15575, 16125, 18690, 19135, 22250, 22575, 22962, 26789, 31150, 32250, 33375, 37625, 38270, 45150, 46725, 53578, 57405, 66750, 75250, 77875, 80367, 93450, 95675, 112875, 114810, 133945, 155750, 160734, 191350, 225750, 233625, 267890, 287025, 401835, 467250, 478375, 574050, 669725, 803670, 956750, 1339450, 1435125, 2009175, 2870250, 3348625, 4018350, 6697250, 10045875, 20091750]

約数ペア:

[(1, 20091750), (2, 10045875), (3, 6697250), (5, 4018350), (6, 3348625), (7, 2870250), (10, 2009175), (14, 1435125), (15, 1339450), (21, 956750), (25, 803670), (30, 669725), (35, 574050), (42, 478375), (43, 467250), (50, 401835), (70, 287025), (75, 267890), (86, 233625), (89, 225750), (105, 191350), (125, 160734), (129, 155750), (150, 133945), (175, 114810), (178, 112875), (210, 95675), (215, 93450), (250, 80367), (258, 77875), (267, 75250), (301, 66750), (350, 57405), (375, 53578), (430, 46725), (445, 45150), (525, 38270), (534, 37625), (602, 33375), (623, 32250), (645, 31150), (750, 26789), (875, 22962), (890, 22575), (903, 22250), (1050, 19135), (1075, 18690), (1246, 16125), (1290, 15575), (1335, 15050), (1505, 13350), (1750, 11481), (1806, 11125), (1869, 10750), (2150, 9345), (2225, 9030), (2625, 7654), (2670, 7525), (3010, 6675), (3115, 6450), (3225, 6230), (3738, 5375), (3827, 5250), (4450, 4515)]