138343640

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1\times {\mathrm{241}}^1$

素因数の和:492

約数の個数: 64

約数和(自身を含む): 317813760

約数和(自身を除く): 179470120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 127, 226, 241, 254, 452, 482, 508, 565, 635, 904, 964, 1016, 1130, 1205, 1270, 1928, 2260, 2410, 2540, 4520, 4820, 5080, 9640, 14351, 27233, 28702, 30607, 54466, 57404, 61214, 71755, 108932, 114808, 122428, 136165, 143510, 153035, 217864, 244856, 272330, 287020, 306070, 544660, 574040, 612140, 1089320, 1224280, 3458591, 6917182, 13834364, 17292955, 27668728, 34585910, 69171820, 138343640]

約数ペア:

[(1, 138343640), (2, 69171820), (4, 34585910), (5, 27668728), (8, 17292955), (10, 13834364), (20, 6917182), (40, 3458591), (113, 1224280), (127, 1089320), (226, 612140), (241, 574040), (254, 544660), (452, 306070), (482, 287020), (508, 272330), (565, 244856), (635, 217864), (904, 153035), (964, 143510), (1016, 136165), (1130, 122428), (1205, 114808), (1270, 108932), (1928, 71755), (2260, 61214), (2410, 57404), (2540, 54466), (4520, 30607), (4820, 28702), (5080, 27233), (9640, 14351)]