78900978

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{379}}^1$

素因数の和:571

約数の個数: 64

約数和(自身を含む): 181560960

約数和(自身を除く): 102659982

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 39, 51, 78, 102, 157, 221, 314, 379, 442, 471, 663, 758, 942, 1137, 1326, 2041, 2274, 2669, 4082, 4927, 5338, 6123, 6443, 8007, 9854, 12246, 12886, 14781, 16014, 19329, 29562, 34697, 38658, 59503, 69394, 83759, 104091, 119006, 167518, 178509, 208182, 251277, 357018, 502554, 773539, 1011551, 1547078, 2023102, 2320617, 3034653, 4641234, 6069306, 13150163, 26300326, 39450489, 78900978]

約数ペア:

[(1, 78900978), (2, 39450489), (3, 26300326), (6, 13150163), (13, 6069306), (17, 4641234), (26, 3034653), (34, 2320617), (39, 2023102), (51, 1547078), (78, 1011551), (102, 773539), (157, 502554), (221, 357018), (314, 251277), (379, 208182), (442, 178509), (471, 167518), (663, 119006), (758, 104091), (942, 83759), (1137, 69394), (1326, 59503), (2041, 38658), (2274, 34697), (2669, 29562), (4082, 19329), (4927, 16014), (5338, 14781), (6123, 12886), (6443, 12246), (8007, 9854)]