78335860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{211}}^1\times {\mathrm{977}}^1$

素因数の和:1216

約数の個数: 48

約数和(自身を含む): 174162240

約数和(自身を除く): 95826380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 211, 380, 422, 844, 977, 1055, 1954, 2110, 3908, 4009, 4220, 4885, 8018, 9770, 16036, 18563, 19540, 20045, 37126, 40090, 74252, 80180, 92815, 185630, 206147, 371260, 412294, 824588, 1030735, 2061470, 3916793, 4122940, 7833586, 15667172, 19583965, 39167930, 78335860]

約数ペア:

[(1, 78335860), (2, 39167930), (4, 19583965), (5, 15667172), (10, 7833586), (19, 4122940), (20, 3916793), (38, 2061470), (76, 1030735), (95, 824588), (190, 412294), (211, 371260), (380, 206147), (422, 185630), (844, 92815), (977, 80180), (1055, 74252), (1954, 40090), (2110, 37126), (3908, 20045), (4009, 19540), (4220, 18563), (4885, 16036), (8018, 9770)]