78399985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{677}}^1$

素因数の和:777

約数の個数: 32

約数和(自身を含む): 105442560

約数和(自身を除く): 27042575

約数列:

[1, 5, 19, 23, 53, 95, 115, 265, 437, 677, 1007, 1219, 2185, 3385, 5035, 6095, 12863, 15571, 23161, 35881, 64315, 77855, 115805, 179405, 295849, 681739, 825263, 1479245, 3408695, 4126315, 15679997, 78399985]

約数ペア:

[(1, 78399985), (5, 15679997), (19, 4126315), (23, 3408695), (53, 1479245), (95, 825263), (115, 681739), (265, 295849), (437, 179405), (677, 115805), (1007, 77855), (1219, 64315), (2185, 35881), (3385, 23161), (5035, 15571), (6095, 12863)]