28128450

素因数分解:

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

素因数の和:161

約数の個数: 144

約数和(自身を含む): 83967840

約数和(自身を除く): 55839390

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 43, 49, 50, 70, 75, 86, 89, 98, 105, 129, 147, 150, 175, 178, 210, 215, 245, 258, 267, 294, 301, 350, 430, 445, 490, 525, 534, 602, 623, 645, 735, 890, 903, 1050, 1075, 1225, 1246, 1290, 1335, 1470, 1505, 1806, 1869, 2107, 2150, 2225, 2450, 2670, 3010, 3115, 3225, 3675, 3738, 3827, 4214, 4361, 4450, 4515, 6230, 6321, 6450, 6675, 7350, 7525, 7654, 8722, 9030, 9345, 10535, 11481, 12642, 13083, 13350, 15050, 15575, 18690, 19135, 21070, 21805, 22575, 22962, 26166, 26789, 31150, 31605, 38270, 43610, 45150, 46725, 52675, 53578, 57405, 63210, 65415, 80367, 93450, 95675, 105350, 109025, 114810, 130830, 133945, 158025, 160734, 187523, 191350, 218050, 267890, 287025, 316050, 327075, 375046, 401835, 562569, 574050, 654150, 669725, 803670, 937615, 1125138, 1339450, 1875230, 2009175, 2812845, 4018350, 4688075, 5625690, 9376150, 14064225, 28128450]

約数ペア:

[(1, 28128450), (2, 14064225), (3, 9376150), (5, 5625690), (6, 4688075), (7, 4018350), (10, 2812845), (14, 2009175), (15, 1875230), (21, 1339450), (25, 1125138), (30, 937615), (35, 803670), (42, 669725), (43, 654150), (49, 574050), (50, 562569), (70, 401835), (75, 375046), (86, 327075), (89, 316050), (98, 287025), (105, 267890), (129, 218050), (147, 191350), (150, 187523), (175, 160734), (178, 158025), (210, 133945), (215, 130830), (245, 114810), (258, 109025), (267, 105350), (294, 95675), (301, 93450), (350, 80367), (430, 65415), (445, 63210), (490, 57405), (525, 53578), (534, 52675), (602, 46725), (623, 45150), (645, 43610), (735, 38270), (890, 31605), (903, 31150), (1050, 26789), (1075, 26166), (1225, 22962), (1246, 22575), (1290, 21805), (1335, 21070), (1470, 19135), (1505, 18690), (1806, 15575), (1869, 15050), (2107, 13350), (2150, 13083), (2225, 12642), (2450, 11481), (2670, 10535), (3010, 9345), (3115, 9030), (3225, 8722), (3675, 7654), (3738, 7525), (3827, 7350), (4214, 6675), (4361, 6450), (4450, 6321), (4515, 6230)]