28643320

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{229}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 67068000

約数和(自身を除く): 38424680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 59, 106, 118, 212, 229, 236, 265, 295, 424, 458, 472, 530, 590, 916, 1060, 1145, 1180, 1832, 2120, 2290, 2360, 3127, 4580, 6254, 9160, 12137, 12508, 13511, 15635, 24274, 25016, 27022, 31270, 48548, 54044, 60685, 62540, 67555, 97096, 108088, 121370, 125080, 135110, 242740, 270220, 485480, 540440, 716083, 1432166, 2864332, 3580415, 5728664, 7160830, 14321660, 28643320]

約数ペア:

[(1, 28643320), (2, 14321660), (4, 7160830), (5, 5728664), (8, 3580415), (10, 2864332), (20, 1432166), (40, 716083), (53, 540440), (59, 485480), (106, 270220), (118, 242740), (212, 135110), (229, 125080), (236, 121370), (265, 108088), (295, 97096), (424, 67555), (458, 62540), (472, 60685), (530, 54044), (590, 48548), (916, 31270), (1060, 27022), (1145, 25016), (1180, 24274), (1832, 15635), (2120, 13511), (2290, 12508), (2360, 12137), (3127, 9160), (4580, 6254)]