28271440

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{103}}^1$

素因数の和:236

約数の個数: 80

約数和(自身を含む): 68709888

約数和(自身を除く): 40438448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 73, 80, 94, 103, 146, 188, 206, 235, 292, 365, 376, 412, 470, 515, 584, 730, 752, 824, 940, 1030, 1168, 1460, 1648, 1880, 2060, 2920, 3431, 3760, 4120, 4841, 5840, 6862, 7519, 8240, 9682, 13724, 15038, 17155, 19364, 24205, 27448, 30076, 34310, 37595, 38728, 48410, 54896, 60152, 68620, 75190, 77456, 96820, 120304, 137240, 150380, 193640, 274480, 300760, 353393, 387280, 601520, 706786, 1413572, 1766965, 2827144, 3533930, 5654288, 7067860, 14135720, 28271440]

約数ペア:

[(1, 28271440), (2, 14135720), (4, 7067860), (5, 5654288), (8, 3533930), (10, 2827144), (16, 1766965), (20, 1413572), (40, 706786), (47, 601520), (73, 387280), (80, 353393), (94, 300760), (103, 274480), (146, 193640), (188, 150380), (206, 137240), (235, 120304), (292, 96820), (365, 77456), (376, 75190), (412, 68620), (470, 60152), (515, 54896), (584, 48410), (730, 38728), (752, 37595), (824, 34310), (940, 30076), (1030, 27448), (1168, 24205), (1460, 19364), (1648, 17155), (1880, 15038), (2060, 13724), (2920, 9682), (3431, 8240), (3760, 7519), (4120, 6862), (4841, 5840)]