243617240

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{16871}}^1$

素因数の和:16920

約数の個数: 48

約数和(自身を含む): 578540880

約数和(自身を除く): 334923640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1444, 1805, 2888, 3610, 7220, 14440, 16871, 33742, 67484, 84355, 134968, 168710, 320549, 337420, 641098, 674840, 1282196, 1602745, 2564392, 3205490, 6090431, 6410980, 12180862, 12821960, 24361724, 30452155, 48723448, 60904310, 121808620, 243617240]

約数ペア:

[(1, 243617240), (2, 121808620), (4, 60904310), (5, 48723448), (8, 30452155), (10, 24361724), (19, 12821960), (20, 12180862), (38, 6410980), (40, 6090431), (76, 3205490), (95, 2564392), (152, 1602745), (190, 1282196), (361, 674840), (380, 641098), (722, 337420), (760, 320549), (1444, 168710), (1805, 134968), (2888, 84355), (3610, 67484), (7220, 33742), (14440, 16871)]