20712696575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{28297}}^1$

素因数の和:28416

約数の個数: 48

約数和(自身を含む): 28633048320

約数和(自身を除く): 7920351745

約数列:

[1, 5, 19, 23, 25, 67, 95, 115, 335, 437, 475, 575, 1273, 1541, 1675, 2185, 6365, 7705, 10925, 28297, 29279, 31825, 38525, 141485, 146395, 537643, 650831, 707425, 731975, 1895899, 2688215, 3254155, 9479495, 12365789, 13441075, 16270775, 36022081, 43605677, 47397475, 61828945, 180110405, 218028385, 309144725, 828507863, 900552025, 1090141925, 4142539315, 20712696575]

約数ペア:

[(1, 20712696575), (5, 4142539315), (19, 1090141925), (23, 900552025), (25, 828507863), (67, 309144725), (95, 218028385), (115, 180110405), (335, 61828945), (437, 47397475), (475, 43605677), (575, 36022081), (1273, 16270775), (1541, 13441075), (1675, 12365789), (2185, 9479495), (6365, 3254155), (7705, 2688215), (10925, 1895899), (28297, 731975), (29279, 707425), (31825, 650831), (38525, 537643), (141485, 146395)]