28022120

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{29}}^2$

素因数の和:100

約数の個数: 144

約数和(自身を含む): 80428140

約数和(自身を除く): 52406020

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 29, 34, 35, 40, 49, 56, 58, 68, 70, 85, 98, 116, 119, 136, 140, 145, 170, 196, 203, 232, 238, 245, 280, 290, 340, 392, 406, 476, 490, 493, 580, 595, 680, 812, 833, 841, 952, 980, 986, 1015, 1160, 1190, 1421, 1624, 1666, 1682, 1960, 1972, 2030, 2380, 2465, 2842, 3332, 3364, 3451, 3944, 4060, 4165, 4205, 4760, 4930, 5684, 5887, 6664, 6728, 6902, 7105, 8120, 8330, 8410, 9860, 11368, 11774, 13804, 14210, 14297, 16660, 16820, 17255, 19720, 23548, 24157, 27608, 28420, 28594, 29435, 33320, 33640, 34510, 41209, 47096, 48314, 56840, 57188, 58870, 69020, 71485, 82418, 96628, 100079, 114376, 117740, 120785, 138040, 142970, 164836, 193256, 200158, 206045, 235480, 241570, 285940, 329672, 400316, 412090, 483140, 500395, 571880, 700553, 800632, 824180, 966280, 1000790, 1401106, 1648360, 2001580, 2802212, 3502765, 4003160, 5604424, 7005530, 14011060, 28022120]

約数ペア:

[(1, 28022120), (2, 14011060), (4, 7005530), (5, 5604424), (7, 4003160), (8, 3502765), (10, 2802212), (14, 2001580), (17, 1648360), (20, 1401106), (28, 1000790), (29, 966280), (34, 824180), (35, 800632), (40, 700553), (49, 571880), (56, 500395), (58, 483140), (68, 412090), (70, 400316), (85, 329672), (98, 285940), (116, 241570), (119, 235480), (136, 206045), (140, 200158), (145, 193256), (170, 164836), (196, 142970), (203, 138040), (232, 120785), (238, 117740), (245, 114376), (280, 100079), (290, 96628), (340, 82418), (392, 71485), (406, 69020), (476, 58870), (490, 57188), (493, 56840), (580, 48314), (595, 47096), (680, 41209), (812, 34510), (833, 33640), (841, 33320), (952, 29435), (980, 28594), (986, 28420), (1015, 27608), (1160, 24157), (1190, 23548), (1421, 19720), (1624, 17255), (1666, 16820), (1682, 16660), (1960, 14297), (1972, 14210), (2030, 13804), (2380, 11774), (2465, 11368), (2842, 9860), (3332, 8410), (3364, 8330), (3451, 8120), (3944, 7105), (4060, 6902), (4165, 6728), (4205, 6664), (4760, 5887), (4930, 5684)]