78997985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{197}}^1\times {\mathrm{317}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 108801792

約数和(自身を除く): 29803807

約数列:

[1, 5, 11, 23, 55, 115, 197, 253, 317, 985, 1265, 1585, 2167, 3487, 4531, 7291, 10835, 17435, 22655, 36455, 49841, 62449, 80201, 249205, 312245, 401005, 686939, 1436327, 3434695, 7181635, 15799597, 78997985]

約数ペア:

[(1, 78997985), (5, 15799597), (11, 7181635), (23, 3434695), (55, 1436327), (115, 686939), (197, 401005), (253, 312245), (317, 249205), (985, 80201), (1265, 62449), (1585, 49841), (2167, 36455), (3487, 22655), (4531, 17435), (7291, 10835)]