278312180

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{167}}^1\times {\mathrm{809}}^1$

素因数の和:1088

約数の個数: 48

約数和(自身を含む): 594397440

約数和(自身を除く): 316085260

約数列:

[1, 2, 4, 5, 10, 20, 103, 167, 206, 334, 412, 515, 668, 809, 835, 1030, 1618, 1670, 2060, 3236, 3340, 4045, 8090, 16180, 17201, 34402, 68804, 83327, 86005, 135103, 166654, 172010, 270206, 333308, 344020, 416635, 540412, 675515, 833270, 1351030, 1666540, 2702060, 13915609, 27831218, 55662436, 69578045, 139156090, 278312180]

約数ペア:

[(1, 278312180), (2, 139156090), (4, 69578045), (5, 55662436), (10, 27831218), (20, 13915609), (103, 2702060), (167, 1666540), (206, 1351030), (334, 833270), (412, 675515), (515, 540412), (668, 416635), (809, 344020), (835, 333308), (1030, 270206), (1618, 172010), (1670, 166654), (2060, 135103), (3236, 86005), (3340, 83327), (4045, 68804), (8090, 34402), (16180, 17201)]